Quiste de duplicación duodenal en un paciente pediátrico. Reporte de caso / Duodenal duplication cyst in a pediatric patient. Case report

Introducción. Los quistes de duplicación duodenal son malformaciones raras, que ocurren durante el desarrollo embriológico del tracto gastrointestinal. Caso clínico. Se presenta el caso de un niño de tres años, con cuadro clínico de dolor abdominal, náuseas y vómitos. La ecografía y la tomografía computarizada informaron una imagen quística entre el hígado, riñón derecho y colon. Resultados. Se realizó laparoscopia encontrando un quiste de duplicación duodenal con moco en la primera porción del duodeno. Se practicó una resección del quiste y mucosectomía del segmento restante. Conclusión. Los síntomas de un quiste de duplicación duodenal son inespecíficos y su hallazgo frecuentemente es incidental. El tratamiento quirúrgico depende del tamaño, la ubicación y su relación con la vía biliar.

Introduction. Duodenal duplication cysts are rare malformations that occur during the embryological development of the gastrointestinal tract. Clinical case. The case of a three-year-old boy with abdominal pain, nausea, and vomiting is presented. Ultrasound and computed tomography revealed a cyst between the liver, right kidney, and colon. Results. Laparoscopy was performed, finding a duodenal duplication cyst with mucus in the first portion of the duodenum. A resection of the cyst and mucosectomy of the remaining segment were performed. Conclusion. The symptoms of a duodenal duplication cyst are nonspecific and its finding is frequently incidental. Surgical treatment depends on the size, location, and relationship to the bile duct.

Paraganglioma gangliocítico metastásico: una rara entidad histológica diagnosticada tras una duodenopancreatectomía / Metastatic gangliocytic paraganglioma: a rare histological entity diagnosed after duodenopancreatectomy

Introducción. El paraganglioma gangliocítico es una entidad histológica infrecuente, siendo el duodeno su principal localización extra ganglionar. Caso clínico. Se trata de un varón de 54 años que consulta por dolor abdominal y hemorragia digestiva alta. Se diagnosticó una lesión sospechosa de ampuloma por lo que se realizó una duodenopancreatectomía cefálica. En el análisis histológico, se confirmó el diagnóstico de paraganglioma gangliocítico metastásico por la presencia patognomónica de tres estirpes celulares (epiteliales, ganglionares y Schwann-like). Dado su buen pronóstico, asociado con baja quimiosensibilidad, no recibió tratamiento adyuvante. Resultados. Durante el seguimiento, el paciente no presentó complicaciones tardías, ni signos de recidiva después de un año de la intervención. Conclusión. El paraganglioma gangliocítico es una entidad potencialmente maligna, que requiere un correcto estudio de extensión y un seguimiento estrecho a largo plazo

Introduction. Gangliocytic paraganglioma is a rare histological entity, with the duodenum being its main extra-nodal location. Clinical case. This is a 54-year-old man who presented with abdominal pain and upper gastrointestinal bleeding. A suspicious ampuloma lesion was diagnosed, for which a pancreaticoduodenectomy was performed. In the histological analysis, the diagnosis of metastatic gangliocytic paraganglioma was confirmed by the pathognomonic presence of three cell lines (epithelial, ganglionic, and Schwann-like). Given his good prognosis associated with low chemosensitivity, he did not receive adjuvant treatment. Results. During follow-up, the patient did not present late complications or signs of recurrence one year after the intervention. Conclusion. Gangliocytic paraganglioma is a potentially malignant entity that requires a correct extension study and close long-term follow-up

An-unusual-complication-of-liver-abscess—hepatoduodenal-fistula

Liver abscess is an intra-abdominal infection characterized by localized pus collection with destruction of hepatic parenchyma. When a liver abscess ruptures and extends into adjacent structures, it leads to development of complications which further increases mortality rate. Involvement of peritoneal, pericardial and pleural cavity are often noted but, extension into gastro-intestinal tract is rare and unusual; with only a limited number of cases reported, we present a recently encountered case of liver abscess. The abscess was found to be complicated by formation of fistulous tract with duodenum.

Síndrome biliar obstructivo no litiásico o de Lemmel. ¿Es tan infrecuente como parece? / Non-lithiasic obstructive biliary syndrome or Lemmel's syndrome. Is it as rare as it seems?

Introducción. Aproximadamente el 5 % de los divertículos duodenales pueden causar síntomas y el 1 % presentar complicaciones, siendo la colangitis la más frecuente. El síndrome de Lemmel corresponde a un tipo de ictericia obstructiva intermitente, asociado a la presencia de divertículos periampulares y disfunción del esfínter de Oddi, sin presencia de coledocolitiasis. Método. Se realizó una revisión sistemática de la literatura en Pubmed, Google Académico y ProQuest, con los términos: síndrome de Lemmel, divertículo duodenal sintomático e ictericia obstructiva intermitente. Resultados. Se encontraron 38 casos, siendo España el país con mayor número, seguido de México, Japón y Colombia. No hay diferencias de distribución con respecto al género. El tratamiento más frecuentemente empleado fue la colangio pancreatografia retrógrada endoscópica. Conclusión. El síndrome de Lemmel es poco frecuente, sin un cuadro clínico especifico, con un incremento en los casos informados en los últimos años, posiblemente debido a la mejor disponibilidad de métodos diagnósticos. Es más frecuente en pacientes en la octava década de la vida y su tratamiento generalmente es endoscópico

Introduction. Approximately 5% of duodenal diverticula can cause symptoms and 1% have complications, cholangitis being the most common. Lemmel syndrome corresponds to a type of intermittent obstructive jaundice, associated with the presence of peri-ampullary diverticula and sphincter of Oddi dysfunction, without choledocholithiasis. Method. A systematic review of the literature was carried out in Pubmed, Google Scholar, ProQuest, with the terms: Lemmel syndrome, symptomatic duodenal diverticulum, and intermittent obstructive jaundice.Results. 38 cases were found, Spain being the country with the highest number, followed by Mexico, Japan and Colombia. There are no differences in distribution with respect to gender. The most frequently used treatment was endoscopic retrograde cholangiopancreatography.Conclusion. Lemmel syndrome is a rare disease, without a specific clinical presentation, with an increase in reported cases in recent years possibly due to the better availability of diagnostic methods. It is more frequent in patients in the eighth decade of life and its treatment is generally endoscopic

Gastrinoma primario de ganglio linfático

Los gastrinomas son tumores neuroendocrinos localizados generalmente en duodeno y páncreas, en el contexto de una neoplasia endocrina múltiple y configurando un síndrome de Zollinger-Ellison. La localización de este tipo de tumor en ganglios linfáticos es extremadamente inusual y su diagnóstico precoz constituye un verdadero reto para poder instaurar un tratamiento adecuado y manejar las complicaciones que estos conllevan. Se presenta el caso de un paciente varón de 64 años con un gastrinoma de ganglio linfático y cuya extirpación quirúrgica resultó en la remisión inmediata del cuadro clínico del paciente.

Gastrinomas are neuroendocrine tumors usually located in the duodenum and pancreas, in the context of a Multiple Endocrine Neoplasm and forming a Zollinger-Ellison syndrome. The location of this type of lymph node tumor is extremely unusual and its early diagnosis constitutes a real challenge to be able to establish an adequate treatment and manage the complications that these entail. We present the case of a 64-year-old male patient with a lymph node gastrinoma and whose surgical removal resulted in the immediate remission of the patient's symptoms.

Wilkie’s syndrome: Laparoscopic management – A case report with review of the literature

Superior mesenteric artery (SMA) syndrome also known as Wilkie’s Syndrome is a rare condition characterized by symptoms of small bowel obstruction. It is caused when the angle between the SMA and aorta, also known as the aorto-mesenteric angle, reduces to <25° which, in turn, causes the compression of the third part of the duodenum which traverses between the SMA and the aorta. We, herein, present the case of a 31-year-old female who was diagnosed to have Wilkie’s syndrome. Failing a trial of conservative management, she was ultimately definitively managed by surgery.

Clinical efficacy and prognostic influencing factors of radical surgery for duodenal gastro-intestinal stromal tumor: a multicenter retrospective study / 中华消化外科杂志

Objective:To investigate the clinical efficacy and prognostic influencing factors of radical surgery for duodenal gastrointestinal stromal tumor (GIST).Methods:The retrospective cohort study was conducted. The clinicopathological data of 741 duodenal GIST patients who under-went radical surgery in 17 medical centers, including 121 cases in Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, 121 cases in Chinese PLA General Hospital, 116 cases in Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 77 cases in Fudan University Shanghai Cancer Center, 77 cases in West China Hospital, Sichuan University, 31 cases in Guangdong Provincial People′s Hospital, 24 cases in Fujian Cancer Hospital, 22 cases in Fujian Medical University Union Hospital, 25 cases in Shengjing Hospital of China Medical University, 19 cases in Xiangya Hospital, Central South University, 23 cases in Zhejiang Cancer Hospital, 17 cases in Liaoning Cancer Hospital＆Institute, 17 cases in the First Affiliated Hospital of Xiamen University, 15 cases in Sun Yat-sen University Cancer Center, 14 cases in the First Affiliated Hospital of Nanjing Medical University, 14 cases in Zhongshan Hospital Affiliated to Xiamen University and 8 cases in General Hospital of Chinese People′s Liberation Army Air Force, from January 2010 to April 2020 were collected. There were 346 males and 395 females, aged 55(range, 17?86)years. Observation indicators: (1) neoadjuvant treatment; (2) surgical and postoperative situations; (3) follow-up; (4) stratified analysis. Follow-up was conducted using outpatient examination or telephone interview. Patients were followed up once every 3?6 months during neoadjuvant therapy and once every 6?12 months after radical surgery to detect tumor recurrence and survival of patient up to April 2022. Measurement data with normal distribution were represented as Mean± SD. Measurement data with skewed distribution were represented as M(range), and comparison between groups was conducted using the Mann-Whitney U test. Count data were described as absolute numbers or percentages, and comparison between groups was conducted using chi-square test or Fisher exact probability. The Kaplan-Meier method was used to draw survival curves and calculate survival rates. Log-rank test was used for survival analysis. The COX regression model was used for univariate and multivariate analyses. Propensity score matching was done by the 1∶1 nearest neighbor matching method, and the matching tolerance was 0.02. Results:(1) Neoadjuvant therapy. Of the 741 patients, 34 cases received neoadjuvant therapy for 8(range, 3?44)months. Cases assessed as partial response, stable disease and progressive disease before the radical surgery of the 34 cases were 21, 9, 4, respectively. The tumor diameter of the 34 patients before the neoadjuvant therapy and before the radical surgery were 8.0(range, 3.0?26.0)cm and 5.3(range, 3.0?18.0)cm, with the regression rate as 31.9%(range, ?166.7% to 58.3%). (2) Surgical and postoperative situations. Of the 741 patients, 34 cases underwent radical surgery after receiving neoadjuvant therapy, and 707 cases underwent radical surgery directly. All the 741 patients underwent radical surgery successfully, in which 633, 102 and 6 cases received open surgery, laparoscopic surgery and endoscopic treatment, respectively. Of the 633 cases receiving open surgery and the 102 cases receiving laparoscopic surgery, cases with surgical resection range as pancreatoduodenectomy (PD) was 238, and cases with surgical resection range as duodenal limited resection, including duodenal wedge resection, distal gastrectomy, segmental duodenal resection, local resection of duodenal tumor or segmental duodenum combined with subtotal gastrectomy, was 497, 226, 55, 204, 12. Of the 741 patients, 131 cases had post-operative complications including 113 cases with grade Ⅰ?Ⅱ complications and 18 cases with ≥ grade Ⅲ complications of the Clavien-Dindo classification. The duration of postoperative hospital stay of the 741 patients was 13(range, 4?120)days. Of the 707 patients receiving direct radical surgery, 371 cases were evaluated as extremely low risk, low risk, medium risk of the modified National Institutes of Health (NIH) risk classification after surgery, and 336 cases were evaluated as high risk in which 205 cases receive postoperative adjuvant imatinib therapy with the treatment time as 24(range, 6?110)months. (3) Follow-up. All the 741 patients were followed up for 58(range, 7?150)months. During the follow-up, 110 patients had tumor recurrence and metastasis. The 1-, 3-, 5-year overall survival rates and 1-, 3-, 5-year disease-free survival rates of the 741 patients were 100.0%, 98.6%, 94.5% and 98.4%, 90.9%, 84.9%, respectively. The 1-, 3-, 5-year overall survival rates and 1-, 3-, 5-year disease-free survival rates of the 707 patients receiving direct radical surgery were 100.0%, 98.5%, 94.3% and 98.4%, 91.1%, 85.4%, respectively. (4) Stratified analysis. ① Analysis of prognostic factors in patients undergoing radical surgery directly. Results of univariate analysis showed that primary tumor location, tumor diameter, mitotic count, modified NIH risk classification and tumor gene information were related factors affecting the overall survival of 707 patients with primary duodenal GIST who underwent direct radical surgery ( hazard ratio=0.43, 0.18, 0.22, 0.06, 0.29, 95% confidence intervals as 0.20?0.93, 0.09?0.35, 0.10?0.50, 0.03?0.12, 0.09?0.95, P<0.05). The primary tumor location, tumor diameter, mitotic count, modified NIH risk classification were related factors affecting the disease-free survival of 707 patients with primary duodenal GIST who underwent direct radical surgery ( hazard ratio=0.65, 0.25, 0.25, 0.10, 95% confidence intervals as 0.41?1.03, 0.17?0.37, 0.15?0.42, 0.07?0.15, P<0.05). Results of multivariate analysis showed that primary tumor located at the horizontal segment of duodenum, mitotic count >5/50 high power field, tumor gene KIT exon 9 mutation were independent risk factors affecting the overall survival of 365 patients with primary duodenal GIST after removing 342 patients without tumor gene information who underwent direct radical surgery ( hazard ratio=2.85, 2.73, 3.13, 95% confidence intervals as 1.12?7.20, 1.07?6.94, 1.23?7.93, P<0.05). Tumor diameter >5 cm and mitotic count >5/50 high power field were independent risk factors affecting the disease-free survival of 707 patients with primary duodenal GIST who underwent direct radical surgery ( hazard ratio=3.19, 2.98, 95% confidence intervals as 2.05?4.97, 1.99?4.45, P<0.05). ② Effect of postoperative adjuvant therapy on prognosis of high-risk patients of modified NIH risk classification. Of the 336 patients evaluated as high risk of the modified NIH risk classification, the 5-year overall survival rate and 5-year disease-free survival rate were 94.6% and 77.3% in the 205 cases with postoperative adjuvant therapy, versus 83.2% and 64.4% in the 131 cases without postoperative adjuvant therapy, showing significant differences between them ( χ2=8.39, 4.44, P<0.05). Of the 205 patients evaluated as high risk of the modified NIH risk classification who received postoperative adjuvant therapy, there were 106 cases receiving postoperative adjuvant therapy <36 months, with the 5-year overall survival rate and 5-year disease-free survival rate were 87.1% and 58.7%, and there were 99 cases receiving post-operative adjuvant therapy ≥36 months, with the 5-year overall survival rate and 5-year disease-free survival rate were 100.0% and 91.5%. There were significant differences in the 5-year overall survival rate and 5-year disease-free survival rate between the 106 patients and the 99 patients ( χ2=13.92, 29.61, P<0.05). ③ Comparison of clinical efficacy of patients with different surgical methods. Before propensity score matching, cases with primary tumor located at bulb, descending, horizontal, ascending segment of duodenum, cases with tumor diameter ≤5 cm and >5 cm were 95, 307, 147, 34, 331, 252, in the 583 patients receiving open surgery with complete clinical data, versus 15, 46, 17, 5, 67, 16 in the 83 patients receiving laparoscopic surgery with complete clinical data, showing no significant difference in the primary tumor location ( χ2=0.94, P>0.05), and a significant difference in the tumor diameter ( χ2=17.33, P<0.05) between them. After propensity score matching, the above indicator were 16, 39, 20, 8, 67, 16 in the 83 patients receiving open surgery, versus 15, 46, 17, 5, 67, 16 in the 83 patients receiving laparoscopic surgery, showing no significant difference between them ( χ2=1.54, 0.00, P>0.05). Cases with postoperative complications, cases with grade Ⅰ?Ⅱ complica-tions and ≥grade Ⅲ complications of the Clavien-Dindo classification, duration of postoperative hospital stay, the 5-year overall survival rate and 5-year disease-free survival rate were 17, 12, 5, 11(range, 5?120)days, 92.0%, 100.0% in the 83 patients receiving open surgery, versus 9, 7, 2, 11(range, 5?41)days, 91.6%, 97.3% in the 83 patients receiving laparoscopic surgery, showing no signi-ficant difference in postoperative complications, duration of postoperative hospital stay, the 5-year overall survival rate and 5-year disease-free survival rate ( χ2=2.91, Z=3 365.50, χ2=3.02, 1.49, P>0.05) between them. There was no significant difference in complications of the Clavien-Dindo classification between them ( P>0.05). ④ Comparison of clinical efficacy of patients with primary tumor located at the descending segment of duodenum who underwent surgery with different surgical resection scopes. Before propensity score matching, cases with tumor diameter ≤5 cm and >5 cm, cases with tumor located at opposite side of mesangium and mesangium were 71, 85, 28, 128 in the 156 patients with primary tumor located at the descending segment of duodenum who underwent PD with complete clinical data, versus 92, 41, 120, 13 in the 133 patients with primary tumor located at the descending segment of duodenum who underwent duodenal limited resection with complete clinical data, showing significant differences between them ( χ2=16.34, 150.10, P<0.05). After propensity score matching, the above indicator were 28, 13, 16, 25 in the 41 patients with primary tumor located at the descending segment of duodenum who underwent PD with complete clinical data, versus 28, 13, 16, 25 in the 41 patients with primary tumor located at the descending segment of duodenum who underwent duodenal limited resection with complete clinical data, showing no significant difference between them ( χ2=0.00, 0.00, P>0.05). Cases with postopera-tive complications, cases with grade Ⅰ?Ⅱ complications and ≥grade Ⅲ compli-cations of the Clavien-Dindo classification, duration of postoperative hospital stay, the 5-year overall survival rate and 5-year disease-free survival rate were 13, 11, 2, 15(range, 9?62)days, 94.2%, 64.3% in the 41 patients with primary tumor located at the descending segment of duodenum who underwent PD with complete clinical data, versus 9, 8, 0, 15(range, 7?40)days, 100.0%, 78.8% in the 41 patients with primary tumor located at the descending segment of duodenum who underwent duodenal limited resection with complete clinical data, showing no significant difference in post-operative complica-tions, the 5-year overall survival rate and 5-year disease-free survival rate ( χ2=0.99, 0.34, 1.86, P>0.05) between them. There was no significant difference in complications of the Clavien-Dindo classification ( P>0.05) and there was a significant difference in duration of postopera-tive hospital stay ( Z=614.50, P<0.05) between them. Conclusions:The clinical efficacy of radical surgery for duodenal GIST are ideal. Primary tumor located at the horizontal segment of duodenum, mitotic count >5/50 high power field, tumor gene KIT exon 9 mutation are independent risk factors affec-ting the overall survival of patients undergoing direct radical surgery and tumor diameter >5 cm and mitotic count >5/50 high power field are independent risk factors affecting the disease-free survival of patients. There is no significant difference in the short-term efficacy and long-term prognosis between patients undergoing open surgery and laparoscopic surgery. For patients with primary tumor located at the descending segment of duodenum, the duration of postoperative hospital stay is longer in patients undergoing PD compared with patients undergoing duodenal limited resection. For patients evaluated as high risk of the modified NIH risk classification, posto-perative adjuvant therapy and treatment time ≥36 months are conducive to improving the prognosis of patients.

The effects of early diabetes on duodenal alterations in the rats / Efectos de la diabetes temprana sobre las alteraciones duodenales en ratas

SUMMARY: Diabetes mellitus (DM) mainly affects functional changes in the duodenum, which plays an important role in the digestion and absorption of food. The impairment of duodenal function contributes to malnutrition, abdominal bloating and pain in diabetic patients. Thus, this study aimed to investigate the histological alterations and quantitative measurements of duodenal structures in the early stage of streptozotocin (STZ)-induced diabetic rats. Eight male Sprague-Dawley rats were divided into three control and five diabetic rats. Diabetes was induced by a single intraperitoneal dose of 60 mg/kg STZ. After four weeks of diabetic induction, the duodenum was prepared for histological study and morphometric analysis. In diabetic rats, there were deformed villi with disrupted surface epithelium and mildly distorted shapes of crypts, together with an increase in villus height and crypt depth. The epithelial cells detached from their underlying basement membrane. The goblet cells decreased in number, whereas an increased number of Cellula panethensis (Paneth cells) with pale-stained eosinophilic granules occurred in the DM group. A diabetic thickened submucosal layer was observed as enhanced duodenal glands (Brunner's glands) hypertrophy and collagen accumulation. These findings indicated that histopathologic lesions of the duodenum developed in the early stage of diabetes. The destruction of villi, crypts, and epithelium may affect digestion and absorption. The structural changes in goblet and Cellula panethensis and duodenal glands may be associated with malfunction to protect duodenal mucosa from bacteria and stomach acid. These conditions can worsen the quality of life in diabetic individuals, leading to complications such as maldigestion, malabsorption, and duodenal ulcer.

RESUMEN: La diabetes mellitus (DM) afecta principalmente a cambios funcionales en el duodeno, que juega un papel importante en la digestión y absorción de los alimentos. El deterioro de la función duodenal contribuye a la desnutrición, distensión abdominal y dolor en pacientes diabéticos. Por lo tanto, este estudio tuvo como objetivo estudiar las alteraciones histológicas y determinar las mediciones cuantitativas de las estructuras duodenales en la etapa temprana de ratas diabéticas inducidas por estreptozotocina (STZ). Ocho ratas macho Sprague-Dawley fueron distribuidas en dos grupos: tres ratas control y cinco diabéticas. La diabetes se indujo mediante una dosis intraperitoneal única de 60 mg/kg de STZ. Después de cuatro semanas de inducción, se preparó el duodeno para estudio histológico y análisis morfométrico. En ratas diabéticas, había vellosidades deformadas con epitelio superficial destruido y formas ligeramente distorsionadas de las criptas, junto con un aumento en la altura de las vellosidades y la profundidad de las criptas. Las células epiteliales se encontraban separadas de la membrana basal subyacente. Las células caliciformes habían disminuido en número, mientras que en el grupo DM se produjo un aumento en el número de Cellula panethensis (células de Paneth) con gránulos eosinofílicos teñidos pálidos. Se observó una capa submucosa engrosada con aumento de la hipertrofia de las glándulas duodenales (glándulas de Brunner) y acumulación de colágeno. Estos hallazgos indican que las lesiones histopatológicas del duodeno se desarrollaron en la etapa temprana de la diabetes. La destrucción de vellosidades, criptas y epitelio puede afectar la digestión y la absorción. Los cambios estructurales en Cellula panethensis y glándulas duodenales pueden estar asociados con un mal funcionamiento en la protección de la mucosa duodenal tanto de las bacterias como del ácido gástrico. Estas condiciones pueden empeorar la calidad de vida de las personas diabéticas y provocar complicaciones como mala digestión, malabsorción y úlcera duodenal.

Analysis of surgical complications after laparoscopic duodenum-preserving pancreatic head resection for noncancerous lesions / 中华普通外科杂志

Objective:To analyze the common complications of laparoscopic duodenum- preserving pancreatic head resection(LDPPHR).Methods:The clinical data of 32 patients undergoing LDPPHR from Jun 2018 to Jun 2021 in Cangzhou Central Hospital were analyzed retrospectively.Results:LDPPHR was successfully performed in all 32 patients without conversion to open surgery. The incidence of postoperative complications was 21.9% (7/32), 3 cases suffering from sever complications (1 case of long-term postoperative pancreatic fistula, 1 case of obstructive jaundice caused by duodenal papilla stenosis, 1 case of postoperative abdominal bleeding) were cured by laparotomy; 4 cases of minor complications were simple pancreatic fistula, which were cured by prolonging dranage.Conclusions:LDPPHR is technically feasible for isolated noncancerous lesions within pancreatic head and uncinate process,the complications were manageable.Its suggested benefits remain to be established by long term follow-up.

Clinical, imaging and pathological features of duodenal gangliocytic paraganglioma / 中华肝胆外科杂志

Objective:To study the clinical, imaging and pathological features of duodenal gangliocytic paraganglioma (DGP).Methods:The clinical, imaging and pathological data of patients with DGP treated at the Shandong Provincial Hospital Affiliated to Shandong First Medical University from January 2012 to October 2021 were retrospectively analyzed.Results:Of 8 patients with DGP, there were 7 males and 1 female, with a median age of 52 years (range 37 to 57 years). Five patients were asymptomatic and they were diagnosed on physical examination followed by investigations. Three patients presented with black stools. CT examination showed localized nodular thickening of the duodenum, with enhanced scanning showing obvious progressive contrast enhancement. Endoscopic ultrasonography showed a hypoechoic submucosal lesion in duodenal wall. Histologically, the neoplasm composed of three different cell types which included Schwann cells, epithelioid cells, and ganglioid cells. The Schwann cells expressed NF, NSE and S-100 proteins; the epithelioid cells expressed CK, NSE, Syn and CgA proteins; while the ganglioid cells expressed NSE, Syn, CgA and NF proteins. Endoscopic submucosal dissection was performed in 2 patients and surgical resection was performed in 6 patients.Conclusion:DGP is a rare benign neurogenic tumor which is most commonly found in the duodenum. It has a good prognosis. Imaging and endoscopic examinations demonstrated a submucosal mass. The main treatment are endoscopic resection and local surgical resection.

Diagnosis and treatment of duodenal foreign bodies / 中华消化外科杂志

Most foreign bodies are often discharged without obvious symptoms after swallowing, but some may be misdiagnosed and stay in the body, resulting in serious complications. Different diagnostic methods should be integrated to diagnose such patients. Once diagnosed, they should be treated as soon as possible if necessary. The authors reported a case of retention in the body for 6 years after swallowing a wooden chopstick, resulting in the insertion into the psoas muscle after duodenal perforation, complicated by abdominal abscess. During the operation, endoscopic assisted laparoscopic foreign body removal was performed, and the patient showed good prognsis, which provided references for the diagnosis and treatment of the disease.

Effect of electroacupuncture at "Zusanli" (ST 36) on duodenal mast cells, NGF and NTRK1 in rats with functional dyspepsia / 中国针灸

OBJECTIVE@#To observe the effect of electroacupuncture (EA) at "Zusanli" (ST 36) on duodenal mast cells, nerve growth factor (NGF) and neurotrophic tyrosine kinase receptor type 1 (NTRK1), and to explore the mechanism of electroacupuncture at Zusanli (ST 36) on functional dyspepsia (FD).@*METHODS@#Sixty SPF-grade 10-day-old SD rats were randomly divided into a normal group, a model group, a ketotifen group and an EA group, 15 rats in each group. The FD model was prepared by iodoacetamide combined with rat tail clamping method in the model group, the ketotifen group and the EA group. The rats in the ketotifen group were injected intraperitoneally with ketotifen (1 mg•kg-1•d-1) for 7 days; the rats in the EA group were treated with EA at bilateral "Zusanli" (ST 36), with disperse-dense wave, frequency of 2 Hz/50 Hz and intensity of 0.5 mA, 20 min each time, once a day for 14 days. The gastric emptying rate and small intestinal propulsion rate in each group were observed; the morphology of duodenal mucosa was observed by HE staining; the toluidine blue staining was used to observe the number and degranulation of mast cells in duodenal mucosa; the protein and mRNA expressions of NGF, NTRK1 in duodenum were detected by Western blot and real-time PCR; the level of interleukin-1β (IL-1β) in duodenum was measured by ELISA.@*RESULTS@#Compared with the normal group, the gastric emptying rate and small intestinal propulsion rate in the model group were decreased (P<0.01); compared with the model group, the gastric emptying rate and small intestinal propulsion rate in the ketotifen group and the EA group were increased (P<0.01); the small intestinal propulsion rate in the EA group was higher than that in the ketotifen group (P<0.01). In the model group, local defects in duodenal mucosa were observed with a small amount of inflammatory cell infiltration; no obvious abnormality was found in duodenal mucosa of the other groups. Compared with the normal group, the mast cells of duodenal mucosa in the model group were increased significantly with significant degranulation; compared with the model group, the mast cells of duodenal mucosa in the ketotifen group and the EA group were decreased significantly, and the degranulation was not obvious. Compared with the normal group, the protein and mRNA expressions of NGF, NTRK1 as well as the level of IL-1β in duodenum in the model group were increased (P<0.01); compared with the model group, the protein and mRNA expressions of NGF, NTRK1 as well as the levels of IL-1β in duodenum in the ketotifen group and the EA group were decreased (P<0.01, P<0.05); compared with the ketotifen group, the mRNA expression of NGF, as well as the protein and mRNA expressions of NTRK1 in duodenum in the EA group were decreased (P<0.05, P<0.01).@*CONCLUSION@#EA at "Zusanli" (ST 36) could inhibit the activation of duodenal mast cells and regulate the expressions of NGF and its receptor to improve the low-grade inflammatory response of duodenum, resulting in treatment effect on FD.

Divertículo duodenal intraluminal como causa de obstrucción duodenal / Intraluminal duodenal diverticulum as a cause of duodenal obstruction

Introducción. El divertículo duodenal intraluminal, también conocido como windsock diverticulum, es una causa rara de dolor abdominal intermitente y plenitud postpandrial, que puede complicarse con obstrucción, sangrado, pancreatitis o colangitis. Suele cursar de forma asintomática y ante la aparición de síntomas el tratamiento de elección es quirúrgico. Caso clínico. Presentamos el caso de una mujer de 24 años, sin antecedentes de interés, que es estudiada por dolor abdominal y plenitud postpandrial, que resulta finalmente en una obstrucción intestinal alta. Tras estudio exhaustivo y necesidad de una cirugía previa, es diagnosticada de un divertículo duodenal intraluminal. Conclusión. La paciente se trató mediante cirugía con resolución exitosa del cuadro de obstrucción intestinal.

Introduction: Intraluminal duodenal diverticulum, also known as a windsock diverticulum, is a rare cause of intermittent abdominal pain and postprandial fullness, which can be complicated by obstruction, bleeding, pancreatitis, or cholangitis. It is usually asymptomatic and when symptoms appear, the treatment of choice is surgical. Clinical case: We present the case of a 24-year-old woman with no relevant history who is studied for abdominal pain and postprandial fullness, presented with an upper intestinal obstruction. After an exhaustive study and the need for a previous surgery, she was diagnosed with an intraluminal duodenal diverticulum.Conclusion: The patient was treated by surgery with successful resolution of the intestinal obstruction

Metástasis duodenal por hipernefroma, reporte de un caso / Duodenal metastasis from hypernephroma: a case report

RESUMEN Introducción: el hipernefroma representa del 2 % al 3 % de todas las neoplasias malignas del adulto. Sus patrones de metástasis no han sido definidos con precisión. La metástasis duodenal es considerada rara cuando se presenta. Presentación del caso: paciente masculino, de 48 años de edad, con antecedentes de nefrectomía derecha por presentar hipernefroma que a los siete meses de la intervención se diseminó a pulmón y fosa renal. Al año de la nefrectomía es valorado por presentar anemia crónica, sangre oculta en heces fecales positiva y sintomatología gastrointestinal. Se realizó colon por enema opaco que reveló infiltración de la pared y durante la realización de gastroscopia se realizó toma de muestra de lesión tumoral en duodeno. El análisis anatomopatológico de la biopsia duodenal mostró una lesión tumoral de células grandes anaplásicas con citoplasma vacuolado, PAS positivas y PAS Diastasa negativas, compatible con metástasis de carcinoma de células renales. Conclusiones: la aparición tardía de metástasis y la regresión espontánea del hipernefroma exigen un seguimiento integral y prolongado del personal médico a su cargo, en quienes la sospecha de diseminación siempre debe preponderar durante el abordaje clínico, aun cuando la clínica no sugiera los sitios más comunes.

ABSTRACT Introduction: hypernephroma represents 2 % to 3 % of all adult malignant neoplasms. Its metastatic patterns have not been precisely defined. Duodenal metastasis is considered rare when it occurs. Case Report: a 48-year-old-male patient, having a history of right nephrectomy due to hypernephroma, at 7 months after the surgery a spread to the lung and renal fossa was found. One year after nephrectomy he was evaluated for chronic anemia, positive fecal occult blood and gastrointestinal symptoms. An opaque colon enema was performed which revealed infiltration of the wall and during gastroscopy a sample of tumor lesion in the duodenum was taken. The pathological analysis of the duodenal biopsy showed an anaplastic large cell tumor lesion with vacuolated cytoplasm, PAS positive and PAS Diastase negative, compatible with metastasis of renal cell carcinoma. Conclusions: the late appearance of metastases and spontaneous regression of hypernephroma require a comprehensive and prolonged follow-up by the medical staff in charge, in those where the suspicion of dissemination should always prevail during the clinical approach, even when the clinical picture does not suggest the most common sites.

Hematoma duodenal en el adulto: aspectos clínicos imagenológicos. Presentación de tres casos / Duodenal hematoma in theadult: clinical imagingaspects.Presentation of three cases

RESUMEN Fundamento: el hematoma duodenal es una entidad poco frecuente y para su diagnóstico es preciso considerar la existencia de factores de riesgo, las manifestaciones clínicas y el modo de diagnóstico, entre estos, el imagenológico. Objetivo: mostrar distintas formas clínicas e imagenológicas de presentación del hematoma duodenal según tipo de estudio y tiempo de evolución. Presentación de casos: se presentaron tres casos de hematoma duodenal diagnosticados en diferentes periodos evolutivos. El antecedente traumático no fue recogido al inicio en dos de ellos pero las investigaciones imagenológicas orientaron su diagnóstico. El vómito y el dolor abdominal estuvieron presentes en los tres, la anemia, el tinte sub-ictérico y la toma del estado general en el caso de diagnóstico tardío de tres meses de evolución. El cuadro oclusivo intestinal alto surge secundario a una endoscopia con escleroterapia por úlcera sangrante en el tercer caso de forma aguda. En la ecografía, la radiografía contrastada del tubo digestivo y la tomografía axial computarizada se apreciaron variaciones del patrón en dependencia al tiempo de evolución. La ecografía como primer estudio detectó la colección en todos ellos y fue útil en el seguimiento, el estudio radiológico contrastado orientó el diagnóstico con predominio de patrón anfractuoso en el caso tardío, y la tomografía ofreció la mayor información. Conclusiones: para el diagnóstico del hematoma duodenal es necesario tenerlo presente e indagar sobre factores de riesgo, acudir a los medios diagnósticos disponibles y considerar que sus manifestaciones pueden variar según el tiempo de evolución. Se considera la tomografía como examen de elección.

ABSTRACT Background: the duodenal hematoma is an infrequent entity, usually of late diagnosis, which should be made according to risk factors, the clinical manifestations and imaging studies. Objective: to show different clinical and imaging forms of presentation of duodenal hematoma according to type of imaging study and time of progress. Cases reports: three cases of duodenal hematoma diagnosed in different follow up periods are presented. The history of the trauma was not recorded at the beginning in two cases neither considered as a predisposing factor, but the diagnostic research suspected the diagnosis. Vomiting and abdominal pain was seen in all three cases. Anemia, sub-jaundice dye and malaise were present at three months of follow up. Upper acute intestinal occlusive condition was secondary to endoscopic sclera-therapy due to digestive bleeding in the third case. Ultrasound, contrast radiography of the digestive tube and computerized axial tomography showed variations of the pattern depending on the modifications of the hematoma over time. Ultrasound as the first study detected the collection in all cases and was useful in the follow-up. Contrast radiological study was oriented towards the diagnosis and show predominance of regular patterns in case of late diagnosis. The Tomography achieved a greater diagnostic definition. Conclusions: for the diagnosis of duodenal hematoma, it is necessary to take into account and think about risk factors, and the proper management of imaging studies in relation to time of progress. Tomography is the examination of choice.

Tratamiento laparoscópico de un quiste de colédoco gigante en un paciente pediátrico / Laparoscopic treatment of a giant choledochal cyst in a pediatric patient

Resumen Introducción: Se define como quiste de colédoco gigante aquel con un diámetro ≥ 10 cm. A pesar de que el abordaje laparoscópico ha sido contraindicado, se presenta el caso de un adolescente con un quiste de colédoco gigante resuelto por laparoscopía. Caso clínico: Paciente de sexo masculino de 14 años con un quiste de colédoco gigante tratado con anastomosis hepático-duodenal laparoscópica. Conclusiones: El tamaño promedio de los quistes de colédoco tratados por laparoscopía es de 40 mm. No se recomienda la resección de quistes gigantes por mínima invasión debido a adherencias y restricción del campo visual. En este caso se realizó un tratamiento laparoscópico de manera exitosa.

Abstract Background: The giant choledochal cyst has a diameter ≥ 10 cm. Although laparoscopy has been contraindicated, we present the case of a teenager with a giant choledochal cyst resolved by laparoscopy. Case report: A 14-year-old male patient with a giant choledochal cyst treated with hepatic-duodenum laparoscopic anastomosis. Conclusions: The average size of bile duct cysts treated by laparoscopy is 40 mm. Giant cysts should not be resected through minimal invasion due to adhesions and a restricted visual field. We report a case of a giant cyst successfully treated by laparoscopy.

Damage control in penetrating duodenal trauma: less is better - the sequel / El control de daños en trauma penetrante de duodeno: "Menos es Mejor

Abstract The overall incidence of duodenal injuries in severely injured trauma patients is between 0.2 to 0.6% and the overall prevalence in those suffering from abdominal trauma is 3 to 5%. Approximately 80% of these cases are secondary to penetrating trauma, commonly associated with vascular and adjacent organ injuries. Therefore, defining the best surgical treatment algorithm remains controversial. Mild to moderate duodenal trauma is currently managed via primary repair and simple surgical techniques. However, severe injuries have required complex surgical techniques without significant favorable outcomes and a consequential increase in mortality rates. This article aims to delineate the experience in the surgical management of penetrating duodenal injuries via the creation of a practical and effective algorithm that includes basic principles of damage control surgery that sticks to the philosophy of "Less is Better". Surgical management of all penetrating duodenal trauma should always default when possible to primary repair. When confronted with a complex duodenal injury, hemodynamic instability, and/or significant associated injuries, the default should be damage control surgery. Definitive reconstructive surgery should be postponed until the patient has been adequately resuscitated and the diamond of death has been corrected.

Resumen El trauma de duodeno comúnmente se produce por un trauma penetrante que puede asociarse a lesiones vasculares y de órganos adyacentes. En el manejo quirúrgico se recomienda realizar un reparo primario o el empleo de técnicas quirúrgicas simples. Sin embargo, el abordaje de lesiones severas del duodeno es un tema controversial. Anteriormente, se han descrito técnicas como la exclusión pilórica o la pancreatoduodenectomía con resultados no concluyentes. El presente artículo presenta una propuesta del manejo de control de daños del trauma penetrante de duodeno, a través, de un algoritmo de cinco pasos. Este algoritmo plantea una solución para el cirujano cuando no es posible realizar el reparo primario. El control de daños del duodeno y su reconstrucción depende de una toma de decisiones respecto a la porción del duodeno lesionada y el compromiso sobre el complejo pancreatoduodenal. Se recomiendan medidas rápidas para contener el daño y se proponen vías de reconstrucción duodenal diferente a las clásicamente descritas. Igualmente, la probabilidad de complicaciones como fistula duodenales es considerable, por lo que proponemos, que el manejo de este tipo de fistulas de alto gasto se aborde por medio de una laparostomía retroperitoneal (lumbotomía). El abordaje del trauma penetrante de duodeno se puede realizar a través del principio "menos es mejor".

Endoscopic Hemostasis and Its Related Factors of Duodenal Hemorrhage / 中国医学科学院学报

Objective To analyze clinical characteristics and short-term efficacy of endoscopic hemostasis in acute duodenal hemorrhage. Methods A retrospective study was conducted for the patients who received endoscopy in the PUMC Hospital due to upper gastrointestinal bleeding and were confirmed to be on account of duodenal lesions for bleeding from January 2011 to December 2018.Clinical information of patients was collected,including demographics,comorbidities,and medication use.Endoscopic information included the origin of bleeding,the number and location of lesions,Forrest classes and size of ulcers,and endoscopic therapeutic methods.Factors that could be relative to the failure of endoscopic hemostasis or short-term recurrence of hemorrhage in these patients were analyzed. Results Among all the patients with duodenal hemorrhage,79.7%(102/128)were due to ulcers,14.1%(18/128)to tumors,3.9%(5/128)to vascular malformation,and 2.3%(3/128)to diverticulum.Fifty-three(41.4%)patients received endoscopic hemostasis,and six patients(4.7%)received surgery or interventional embolization after the endoscopic test.Among the patients receiving endoscopic hemostasis,5.7%(3/53),66.0%(35/53),and 28.3%(15/53)received injection therapy,mechanical therapy,and dual endoscopic therapy,respectively,and 94.3% of them were cured.However,10(18.9%)of them experienced recurrence of hemorrhage and 3 patients died during hospitalization.Only one patient suffered from perforation after the second endoscopic treatment.Lesions located on the posterior wall of bulb appeared to be a risk factor for the failure of endoscopic hemostasis(OR=31.333,95% CI=2.172-452.072,P=0.021).The lesion diameter≥1 cm was a risk factor of rebleeding after endoscopic therapy(OR=7.000,95% CI=1.381-35.478,P=0.023).Conclusions Peptic ulcers were always blamed and diverticulum could also be a common reason for duodenal hemorrhage,which was different from the etiological constitution of acute upper gastrointestinal hemorrhage.Lesions locating on the posterior wall of the duodenum had a higher potential to fail the endoscopic hemostasis.The lesion diameter≥1 cm was a predictive factor for short-term recurrence.Forrest classes of ulcers at duodenum did not significantly affect the endoscopic therapeutic efficacy or prognosis.

A comparision between two different local resections for the treatment of duodenal stromal tumors / 中华普通外科杂志

Objective:To investigate the safety and clinical efficacy of laparoscopy dominated approaches to two different local resections for duodenal stromal tumors.Methods:From May 2015 to May 2021 25 duodenal stromal tumors cases were allocated to wedged resection group (8 cases) and segmental resection (17cases).Results:Compared with the segmental resection group, the operative time in the wedge resection group was significantly shorter [(202±43) min vs. (299±128) min, t=-2.814, P=0.010]. The intraoperative blood loss was 20 (10-50) ml in the wedge resection group and 30 (15-100) ml in the segmental resection group ( t=-1.128, P>0.05). Patients in the wedge resection group had a significantly shorter postoperative hospital stay, 7(9-11) days vs. 14 (10-28) days, t=-2.66, P=0.008. There was no difference in the incidence of postoperative complications and gastric emptying disorders between the two groups ( P>0.05). Conclusion:In spite of laparoscopic,robotic or open approaches, wedge resection and segmental resection based on anatomic location for duodenal stromal tumors are both safe and satisfactory.

Tumor carcinoide de duodeno: un raro e interesante hallazgo incidental / Carcinoid tumor of the duodenum: a rare and interesting incidental finding

RESUMEN Fundamento: el tumor carcinoide de localización duodenal es poco frecuente, representa 2 % de los tumores neuroendocrinos gastrointestinales. Por lo cual se presenta un caso de este, recientemente diagnosticado en el Hospital Clínico Quirúrgico Joaquín Albarrán de La Habana. Objetivo: realizar la comunicación de un caso de tumor carcinoide del duodeno y revisar la literatura con énfasis en el diagnóstico histopatológico. Presentación del caso: paciente masculino de 86 años de edad que fallece al quinto día de su ingreso. En la autopsia, durante el examen macroscópico de los intestinos, se revela a nivel de la primera porción del duodeno, una lesión que por su histopatología se correspondió con tumor carcinoide de duodeno. Conclusiones: el carcinoide duodenal es un tumor raro cuyo diagnóstico endoscópico o histológico se realiza en la gran mayoría de los casos de forma incidental; se asocia por lo general con una progresión benigna, aunque se recomienda la extracción endoscópica de tumores menores de 1 cm sin localización periampular o evidencia de invasión de la capa de propia muscular, evaluada mediante histología o ecografía endoscópica.

ABSTRACT Background: duodenal carcinoid tumor is rare; it represents 2 % of gastrointestinal neuroendocrine tumors. Therefore, a case of this is presented, recently diagnosed at the Joaquín Albarrán Clinical Surgical Hospital in Havana. Objective: to report a case of carcinoid tumor of the duodenum and review the literature with emphasis on the histopathological diagnosis. Clinical case: 86-year-old male patient who died on the fifth day after admission. At autopsy, during the macroscopic examination of the intestines, a lesion was revealed at the level of the first portion of the duodenum which, due to its histopathology, corresponded to a carcinoid tumor of the duodenum. Conclusions: duodenal carcinoid is a rare tumor whose endoscopic or histological diagnosis is made incidentally in the vast majority of cases; it is generally associated with a benign progression, although endoscopic removal of tumors smaller than 1 cm without periampullary location or evidence of invasion of the muscular layer is recommended, evaluated by histology or endoscopic ultrasound.