Adenoma pleomorfo del septum nasal, reporte de un caso / Pleomorphic adenoma of the nasal septum, a case report

Los adenomas pleomorfos son tumores mixtos benignos frecuentes de las glándulas salivales mayores, sin embargo con una incidencia muy baja en la cavidad nasal, con etiología aún en discusión. Presenta un crecimiento lentamente progresivo, una baja tasa de malignación, su diagnóstico definitivo se realiza mediante estudio histopatológico. Se presenta un caso clínico aislado de una paciente de 39 años de edad, con historia clínica de un año de evolución caracterizado por obstrucción nasal secundario a crecimiento de tumor en tabique nasal, compatible clínica e imagenológica con tumor benigno de fosa nasal, misma que fue sometida a resección quirúrgica vía endonasal, con posterior estudio histopatológico que concluye el diagnóstico de adenoma pleomorfo. Se realiza una revisión de la literatura encontrada, enfatizando en el diagnóstico diferencial, grado de malignación y controles periódicos

Pleomorphic adenomas are common benign mixed tumors of the major salivary glands. However, their incidence in the nasal cavity is very low and remains as a topic of discussion. These tumors exhibit slow but progressive growth and have a low rate of malignancy. Definitive diagnosis is established through histopathological examination. We present an isolated clinical case of a 39-year-old patient with a one-year story of nasal obstruction due to a tumor in the nasal septum. Clinical and imaging findings were consistent with a benign nasal fossa tumor. The patient underwent endonasal surgical resection, and subsequent histopathological analysis confirmed the diagnosis of pleomorphic adenoma. We also review relevant literature, emphasizing differential diagnosis, malignancy grading, and regular follow-up

Primary hyperparathyroidism in pregnancy: a case report highlighting uncommon complication / Hiperparatiroidismo primario en el embarazo: reporte de caso destacando una complicación infrecuente

Abstract Primary hyperparathyroidism (PHPT) is characterized by elevated levels of calcium and parathyroid hormone (PTH). However, the interpretation of diagnostic tests, such as serum calcium and PTH levels, is complex in pregnant women. The aim of this report is to present a case of PHTP in a pregnant adolescent, with a special emphasis on an uncommon complication, as well as diagnostic and treatment strategies. A 17-year-old pregnant female presented with hyper emesis gravidarum and neurological symptoms, leading to the diagnosis of cerebral venous thrombosis. Further investigations revealed hypercalcemia and persistently elevated PTH levels, consistent with PHPT. After local ization studies, the patient underwent an emergency parathyroidectomy with a diagnosis of parathyroid ad enoma. During follow-up, intrauterine growth restric tion and severe preeclampsia developed, necessitating an emergency cesarean section. Both the mother and neonate had favorable outcomes. PHPT is an infrequent condition in the pregnant population, and its diagnosis can be challenging due to the overlap of symptoms with normal physiological changes during pregnancy. The occurrence of uncom mon complications, such as thrombotic phenomena, highlights the need for a comprehensive approach to ensure early detection and management. In most cases, parathyroidectomy is the treatment of choice.

Resumen El hiperparatiroidismo primario (HPTP) se caracteriza por niveles elevados de calcio y hormona paratiroidea (PTH). Sin embargo, la interpretación de pruebas diag nósticas, como los niveles de calcio sérico y PTH, es compleja en mujeres embarazadas. El objetivo de este re porte es presentar un caso de HPTP en una adolescente embarazada, con especial hincapié en una complicación infrecuente, así como en las estrategias diagnósticas y de tratamiento. Una mujer embarazada de 17 años presentó hiperé mesis gravídica y síntomas neurológicos, lo que llevó al diagnóstico de trombosis venosa cerebral. Posterio res investigaciones revelaron hipercalcemia y niveles persistentemente elevados de PTH, consistentes con HPTP. Tras la realización de estudios de localización, la paciente fue sometida a una paratiroidectomía de emergencia con diagnóstico de adenoma de paratiroi des. Durante el seguimiento, se desarrolló restricción del crecimiento intrauterino y preeclampsia grave, lo que resultó en la necesidad de realizar una cesárea de emergencia. Tanto la madre como el neonato evolucio naron favorablemente. El HPTP es una condición infrecuente en la población embarazada y su diagnóstico puede ser desafiante por la superposición de síntomas con los cambios fisiológicos normales del embarazo. La aparición de complicaciones infrecuentes, como fenómenos trombóticos, resalta la necesidad de un abordaje integral para garantizar la detección y el manejo temprano. En la mayoría de los casos, la paratiroidectomía es el tratamiento de elección.

Hipertensión arterial secundaria a enfermedad de Cushing. Reporte de Caso / Hypertension secondary to Cushing´s Disease. Report of a clinical case

INTRODUCCIÓN: La Enfermedad de Cushing es una de las causas menos prevalentes de hipertensión arterial secundaria (HTA) (0,7 a 2,4 casos por millón de personas), sin embargo conlleva un aumento de la morbi-mortalidad que se relaciona con el tiempo de exposición al exceso de corticoides 6, lo cual representa un problema debido a que la inespecificidad de los síntomas y su baja prevalencia, llevan a un retraso diagnóstico de 2 a 4 años 6, generando un incremento del riesgo cardiovascular pese a una resolución completa de la enfermedad 6-9. Este artículo tiene como objetivo describir la presentación clínica de la Enfermedad de Cushing como causa de HTA secundaria. CASO CLÍNICO: Paciente femenina de 36 años con HTA de 7 años de evolución, a quien se identificó adenoma hipofisario productor de ACTH, con posterior exéresis transesfenoidal parcial, presentando enfermedad persistente, en quien se optó manejo farmacológico a base de inhibidor de la esteroidogénesis para control de la enfermedad. DISCUSIÓN: La HTA es un problema de salud pública considerado el principal factor de riesgo para discapacidad y muerte prematura 2, con las causas secundarias como responsables de gran afectación en la calidad de vida, tomando en cuenta que estas son potencialmente curables. El manejo de la enfermedad de Cushing (EC) es principalmente quirúrgico 6,13-14, pero en caso de enfermedad persistente existen alternativas para control de la enfermedad 6,15-16, siendo los fármacos inhibidores de la esteroidogénesis los más usados. CONCLUSIONES: La EC es una causa poco frecuente hipertensión arterial secundaria, pero implica un importante compromiso de la calidad de vida, al igual que otras etiologías secundarias, por lo que es fundamental tener en cuenta las características clínicas y bioquímicas que sugieran una etiología secundaria que lleven a un diagnóstico y tratamiento oportunos.

INTRODUCTION: Cushing's Disease is one of the least prevalent causes of secondary hypertension (0.7 to 2.4 cases per million people), however it entails an increase in morbidity and mortality that is related to the chronic exposure of corticosteroids 6, which represents a problem because the no specificity of the symptoms and their low prevalence lead to a diagnostic delay of 2 to 4 years 6, increasing the cardiovascular risk despite complete resolution of the disease 6 -9. The purpose of this article aims to describe the clinical presentation of Cushing Disease (CD) as a cause of secondary hypertension. CLINICAL CASE: 36-year-old female patient with hypertension of 7 years of evolution, in whom an ACTH-producing pituitary adenoma was identified, with subsequent partial transsphenoidal excision, presenting persistent disease, in whom pharmacological management based on a steroidogenesis inhibitor was chosen. for disease control. DISCUSSION: Hypertension is a public health problem, considered the main risk factor for disability and premature death 2, with secondary causes responsible for great impact on quality of life, considering that these are potentially curative. The management of CD is mainly surgical 6,13-14, but in cases of persistent disease there are alternatives to control the disease 6,15-16, with steroidogenesis inhibitor drugs being the most used. CONCLUSIONS: CD is a rare cause of secondary hypertension, but it implies a significant compromise in quality of life, like other secondary etiologies, so it is essential to consider the clinical and biochemical characteristics that suggest a secondary etiology, which can lead to timely diagnosis and treatment.

Changes of macular retinal structure and microcirculation in patients with pituitary adenoma observed by optical coherence tomography and optical coherence tomography angiography / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To observe the changes of macular retinal structure and microcirculation in patients with pituitary adenoma(PA)by optical coherence tomography(OCT)and optical coherence tomography angiography(OCTA).METHODS: Cross-sectional study. A total of 40 PA patients treated at the department of neurosurgery, Affiliated Hospital of Guangdong Medical University from September 2021 to March 2023 were included as PA group, and 42 age- and gender-matched healthy volunteers were selected as normal control group. All patients underwent visual field, OCT and OCTA examinations, and the correlation of ocular parameters in PA patients was analyzed.RESULTS:The vessel density(VD)of each retinal layer in the macular area of the PA group was lower than that of the normal control group, and the superficial vascular complex(SVC)-VD in the macular area was positively correlated with the thickness of the macular ganglion cell complex(mGCC)(except the nasal side of the inner ring and the lower part of the outer ring; P<0.05). The thickness of mGCC in each quadrant of the macular area and the thickness of the circumpapillary retinal nerve fiber layer(CP-RNFL)in each quadrant were negatively correlated with the mean defect(MD)value of the visual field(P<0.05), and the area of the foveal avascular zone(FAZ)was positively correlated with the MD value(P<0.05).CONCLUSION:The combination of OCT and OCTA can fully understand the microscopic changes of retinal structure and microcirculation function in PA patients, which is of great value in evaluating the preoperative visual function of PA patients.

Mechanism of Xiezhuo Jiedu Recipe in Preventing Colorectal Adenoma in Mice Through miRNA-34a-5p/PI3K/Akt Signalling Pathway / 中国实验方剂学杂志

ObjectiveKey microRNAs （miRNAs） of colorectal adenoma （CRA） were identified and analyzed by bioinformatics methods， and differentially expressed genes （DEGs） were screened to construct regulatory relationships. The mechanism of Xiezhuo Jiedu recipe in preventing CRA was speculated and verified by animal experiments. MethodThe miRNAs dataset GSE50194 was obtained from the Gene Expression Omnibus （GEO） database of intestinal mucosal tissue of CRA patients， and the differentially expressed miRNAs were screened by GEO2R and Excel. TargetScan， miRTarbase， and miRDB databases were used to predict the target genes of the differentially expressed miRNAs， and an intersection was obtained. Key DEGs were screened through the STRING database and Cytoscape software， and the TRRUST database was used to predict downstream binding transcription factors （TFs）. The mRNA intersection was enriched by gene ontology （GO） and Kyoto encyclopedia of genes and genomes （KEGG） in the Metascape database. DIANA TOOLS were applied to perform KEGG enrichment analysis of key miRNAs， and the key signaling pathways were selected for animal experiments. In animal experiments， the CRA mice model was established by using sodium glycan sulfate （DSS） drinking combined with intraperitoneal injection of azomethane oxide （AOM）， and Xiezhuo Jiedu recipe and aspirin were given by intragastric administration at the same time. The experiment lasted for nine weeks. The pathological changes in intestinal tissue were observed by hematoxylin-eosin （HE） staining. Real-time fluorescence quantitative polymerase chain reaction （Real-time PCR） was used to detect the mRNA expression of miR-34a-5p in adenoma tissue. Protein expression levels of phosphatidylinositol 3-kinase （PI3K）， protein kinase B （Akt）， phosphoryl-PI3K （p-PI3K）， phosphoryl-Akt （p-Akt）， and B cell lymphoma （Bcl）-2 were detected by Western blot. The expression of Cyclin D1 （CCND1） was detected by immunohistochemistry （IHC）. In situ terminal transferase labeling （TUNEL） was used to detect apoptosis of adenoma tissue cells. ResultThe GEO database screened the GSE50194 dataset， and miR-34a-5p was selected as the research object from CRA and normal tissue. A total of 93 DEGs were selected. Among them， GO and KEGG enrichment analyses were closely related to biological processes such as transcriptional regulatory complex， RNA polymerase Ⅱ transcriptional regulatory complex， enzyme-linked receptor protein signaling pathway， and DNA-binding transcriptional activator activity， cancer pathway， PI3K/Akt pathway， etc. miR-34a-5p is mainly enriched in PI3K/Akt， cell cycle， and colorectal cancer pathways. Five key DEGs were screened out through the Matescape database， among which Bcl-2 and CCND1 were the key DEGs of miR-34a-5p. Further screening of the TFs of key DEGs revealed that E2F transcription factor 1 （E2F1） and tumor protein P53 （TP53） were the main TFs of Bcl-2 and CCND1. Animal experiments showed that Xiezhuo Jiedu recipe could effectively up-regulate mRNA level of miR-34a-5p， down-regulate the expression of PI3K， Akt， Bcl-2， p-PI3K， and p-Akt proteins in the intestinal tissue of CRA mice， down-regulate the positive expression rate of CCND1， and increase the apoptosis rate of intestinal epithelial cells. ConclusionIt is speculated that Xiezhuo Jiedu recipe may inhibit the abnormal proliferation and promote the apoptosis of intestinal epithelial cells in CRA mice by regulating the miR-34a-5p/PI3K/Akt signaling pathway， thus playing a role in the prevention of CRA.

Diagnostic value of plasma SPINK4 expression in colorectal adenocarcinoma and progressive adenoma / 重庆医学

Objective To investigate the clinical diagnostic value of plasma serine protease inhibitor Ka-zal-type 4(SPINK4)expression in colorectal adenocarcinoma(CRC)and progressive adenoma(AA).Methods A total of 62 patients with CRC(CRC group)and 15 patients with AA(AA group)diagnosed by colonoscopy and pathological examination in this hospital from June 2020 to December 2021 were selected,and 22 healthy people undergoing physical examination during the same period were selected as the HC group.The expression of SPINK4 in plasma was detected by ELISA,and the expression of CEA in plasma was detected by electrochemiluminescence,and the correlation was analyzed.The diagnostic efficiency was analyzed by re-ceiver operating characteristic(ROC)curve,and the expression of p53 in CRC tissues was detected by immu-nohistochemistry.Results The expression of plasma SPINK4 in the CRC group and AA group was lower than that in the HC group(Z=3.72,-0.41,P＜0.05),and the expression of CEA in the CRC group was higher than that in the HC group(Z=-3.63,P＜0.05).The area under the curve(AUC),accuracy,sensi-tivity and specificity of SPINK4 combined with CEA in the diagnosis of CRC and AA were higher than those of SPINK4 and CEA alone.The positive rate of mutant type p53 in SPINK4 low expression group and CEA high ex-pression group was significantly increased in CRC patients(72.55％,75.00％,P＜0.05).Conclusion The expression of plasma SPINK4 is decreased in CRC and AA,and the combined detection of SPINK4 and CEA has a good di-agnostic efficiency in CRC and AA.

Association between ELL2 polymorphism and susceptibility to pleomorphic adenoma of salivary gland / 解放军医学杂志

Objective To analyze the correlation between the ELL2 gene 1119 T>C polymorphism and the susceptibility to pleomorphic adenoma of the salivary gland.Methods The pedigree of the pleomorphic adenoma family of salivary gland was drawn.The exons of ELL2 gene in 5 members of salivary pleomorphic adenoma family were sequenced.A case-control study was conducted.One hundred and twelve patients with pleomorphic adenoma of the salivary gland who visited the Department of Oral and Maxillofacial Surgery of Shanxi Bethune Hospital from January 2016 to July 2020 were taken as case group,and 176 healthy examinees from January 2019 to January 2020 were taken as control group with age and sex as matching conditions.The 1119 T>C polymorphism of ELL2 genes in the two groups were detected with high resolution melting(HRM)curve.Chi-square test was adopted to analyze the correlation between gene polymorphism and the occurrence of pleomorphic adenoma of the salivary gland,stratified analysis was performed to evaluate the synergistic effect of smoking and genotype,and real time quantitative reverse transcription polymerase chain reaction(RT-PCR)was used to detect the expression level of ELL2 in individuals with different genotypes.Results The 1119 T>C polymorphism site existed in the exon 8 of ELL2 gene in a family with pleomorphic adenoma of salivary gland.The results of case-control study showed that the genotype frequency of homozygous CC was significantly higher in patients with pleomorphic adenoma of salivary gland than that in the controls(24.1%vs.11.9%,P=0.002).Homozygous CC was associated with increased risk for developing pleomorphic adenoma of salivary gland(OR=3.059,95%CI 1.494-6.263)in this cohort.Stratification analysis showed that smoking and 1119C allele cooperated to increase the risk of pleomorphic adenoma of salivary gland(OR=3.200,95%CI 1.460-7.014).The expression level of ELL2 mRNA in CC genotype was significantly higher than that in individuals with CT or TT genotype(P<0.05).Conclusion The genetic variation of ELL2 may play an important role in the occurrence of pleomorphic adenoma of salivary gland,and smoking combined with the 1119C allele increased the risk of this disease.

Predictive Value of Peripheral Blood Septin9 Gene Methylation Assay in Colorectal Adenoma / 昆明医科大学学报

Objective To investigate the predictive significance of Septin9 gene methylation(mSEPT9)in peripheral blood in the diagnosis of colorectal adenoma.Methods A total of 52 subjects were included,31 patients with colorectal adenomas were collected as the experimental group in the Department of Pathology and 21 subjects with negative colonoscopy in the gastroenterology outpatient clinic were used as the control group from October 2020 to May 2022.mSEPT9 was detected in the two groups,and the results of CEA level in peripheral blood were collected.All the results were statistically analyzed using the Receiver Operating Characteristic(ROC).Results The area under the curve(area of the ROC:AUC)of mSEPT9detectionto predict the development of adenoma was 0.7205(P<0.05),And the cut-off value(CT value)was 39.55,the corresponding sensitivity was 90.91%and the specificity was 56.67%.The AUC of CEA detection for predicting adenoma was 0.5333(P>0.05).Conclusions The detection of mSEPT9 is better than that of CEA tumor marker detection in peripheral blood for screening colorectal adenomas with good sensitivity and relative specificity.Invasive colonoscopy for people with positive mSEPT9 screening results can be easier to accept by the general population.

Pyloric gland adenoma:a clinicopathological analysis of 16 cases / 临床与实验病理学杂志

Purpose To investigate the clinical feature and histopathology of pyloric gland adenoma.Methods Clinical da-ta of 16 cases of pyloric adenomas were collected.The expres-sion of Pepsinogen I,p53,MUC6,MUC5AC,CgA,Syn,CD56,Ki67,CDX-2,MUC2,β-catenin,and CD10 was detec-ted by immunohistochemistry EnVision method.The relationship with clinicopathological features and prognosis was analyzed.Results There were 7 males and 9 females,aged from 26 to 81 years with an average of 58 years.Tumor diameters ranged from 0.2 to 4 centimeter with a mean of 1.3 centimeter.The anatomi-cal sites of the 16 PGA were stomach(6 cases),including 3 ca-ses in body,3 cases in fundus and duodenum(3 cases).7 ca-ses of low-grade PGAs were composed of closely packed pyloric-type glands,lined by cuboidal/low columnar epithelia.The nu-clei(round to ovoid)were basally located,with inconspicuous nucleoli.Neoplastic cells characterized by a defined ground-glass appearance,with clear or eosinophilic cytoplasm.The cell was lack of a well-defined apical mucin cap.1 case of high-grade PGAs consistently exhibited architecture,crowded nuclei,and loss of nuclear polarity.The remaining 8 cases had both low-and high-grade components.Squamous morula was found in 5 cases.According to immunohistochemical characteristics,8 of 16 cases were mixed pattern(MUC5AC+,MUC6+).Others were pure pyloric type(MUC5AC-,MUC6+).No foveolar-dominant type(MUC5AC+,MUC6-)was found.Conclusion PGA is a rare tumor of the digestive system,with characteristic morpholog-ical characteristics and immunophenotype.Clinicians and pathol-ogists need to strengthen their understanding and better manage patients because of the risk of malignant transformation.Early detection,early diagnosis and early treatment are needed.

Correlation analysis between tumor burden and biochemical indicators of parathyroid adenoma / 中华内分泌外科杂志

Objective:To determine the correlation of tumor volume and weight with biochemical parameters in patients with parathyroid adenoma (PA) .Methods:A prospective electronic database collected clinical data on 208 patients with PA treated for the first time by surgery at department of general surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College.The relationship between biochemical parameters and tumor volume and weight was analyzed with Spearman’s correlation.Results:Tumor volume and weight were positively correlated with parathyroid hormone (PTH) ( r=0.33, P<0.001; r=0.39, P<0.001), calcium ( r=0.16, P=0.018; r=0.18, P=0.007) and alkaline phosphatase levels ( r=0.24, P<0.001; r=0.27, P<0.001), respectively. Clinical correlates affecting serum PTH were age, serum calcium and tumor weight ( F=30.325, P<0.001) . Conclusions:Tumor burden in patients with PA correlates with some laboratory biochemical parameters. Age and cystic lesions of the tumor may influence the actual serum PTH levels.

Multi slice spiral CT features of bronchiolar adenoma / 实用放射学杂志

Objective To summarize the multi slice spiral computed tomography(MSCT)features of bronchiolar adenoma(BA).Methods The imaging data of 9 cases of BA confirmed by surgery and pathology were analyzed retrospectively,and relevant literature was also reviewed.Results Among the 9 cases of BA,there were 8 cases with peripheral BA(away from the pleura≤5 mm)inclu-ding 4 cases close to the pleura and 1 case in central area.BA were located in the superior lobe of the right lung in 3 cases,the middle lobe of the right lung in 2,the inferior lobe of the right lung in 2,and the inferior lobe of the left lung in 2.Five cases were solid nod-ules,2 were ground-glass nodules and other 2 were cystic cavity nodules.In 2 cases of the solid nodules,the boundary on the non-venous side was blurred.In the 1 case of the ground-glass nodule,linear and reticular shadows were observed in the lesion,accompanied by a blurred boundary.2 nodules had mild pleura indentation,and other 7 nodules were found blood vessels entering into or adhering to the lesion,3 of which were accompanied by vascular thickening.In 8 cases with 2-48 month followed up,1 cystic cavity nodule was accompa-nied by obstructive pneumonia and then inflammatory absorption,1 solid nodule enlarged accompanied by the appearance of vacuoles,and the rest 6 had no changes.One central type nodule was operated after the CT examination.Conclusion BA are mainly manifes-ted as peripheral nodules of the lung,mostly close to the pleura and away from the pleura≤5 mm.Most BA are solid nodules,and sometimes are ground-glass or cystic cavity nodules.Some nodules show blurred boundaries or inflammation on the non-venous side,and few nodules increase during follow-up,with or without small vacuoles.

Syndrome of inappropriate secretion of thyrotropin: Differential diagnosis / 中华内分泌代谢杂志

Objective:Through comprehensive analysis of symptoms and signs, biochemistry, imaging, and dynamic tests, to explore the diagnosis and differential diagnosis of thyrotropin-secreting pituitary adenoma(TSH adenoma) and syndrome of resistance to thyroid hormone(RTH).Methods:A retrospective analysis was conducted on clinical data from 14 patients who visited the First Affiliated Hospital of Zhengzhou University from July 2016 to September 2022, exhibiting elevated levels of free thyroxine(FT4) and free triiodothyronine(FT3) in the presence of increased TSH.Results:There were 7 cases of TSH adenoma and 7 cases of RTH, with the average age of diagnosis at 40.0 years and 26.6 years, respectively. Thirteen patients showed thyrotoxicosis or occasional palpitation, some with pituitary occupancy manifestations or abnormal growth and development; One patient presented with neck thickening. Sex hormone binding globulin was elevated in 3 cases of TSH adenoma. Pituitary magnetic resonance imaging showed that all 7 cases of TSH adenoma were macroadenomas and 1 case of RTH was microadenoma. The octreotide suppression test in 13 patients was inhibited, but there was a significant difference in the inhibition rate of 24 h/2 h TSH inhibition rate of TSH adenoma and RTH, ranging from 46.6% to 83.9% and 4.6% to 28.8% respectively. Six cases of RTH had thyroid hormone receptor β mutation.Conclusion:Syndrome of inappropriate secretion of thyrotropin is a rare condition, mainly including TSH adenoma and RTH. The diagnosis and differentiation of the two conditions require comprehensive assessment incorporating family history, symptoms and signs, laboratory tests, dynamic test, and genetic test. Among these, the 24 h/2 h TSH inhibition rate of octreotide suppression test can effectively distinguish TSH adenoma from RTH.

A Prediction Model for Colorectal Adenoma and Colorectal Cancer Based on Routine Test / 肿瘤防治研究

Objective To analyze the routine test parameter levels of patients with colorectal adenoma and colorectal cancer, and develop a prediction model. Methods A total of 580 patients diagnosed with colorectal adenoma (117 patients) and colorectal cancer (463 patients) were included in the retrospective study. The patients were randomly divided into two groups according to a 7:3 ratio: a training set with 406 cases and a validation set with 174 cases. Logistic regression analysis was used to establish a prediction model, and a nomogram was drawn. The model′s discrimination, calibration, and clinical applicability were evaluated using receiver operating characteristic curve (ROC), calibration plot, and decision curve analysis (DCA). Results Univariate logistic regression analysis identified 13 potential predictors: age, fecal occult blood test (FOBT), fibrinogen (FIB), thrombin time (TT), albumin (ALB), white blood cell value (WBC), neutrophil count (NEUT#), hematocrit value (HCT), mean corpuscular hemoglobin (MCH), red cell distribution width (RDW), platelet count (PLT), mean platelet volume (MPV), and activated partial thromboplastin time (APTT). Multivariate logistic regression analysis showed MPV, FIB, ALB, FOBT, TT, and HCT were risk factors for colorectal cancer in patients with colorectal adenoma (P<0.05). A nomogram was constructed based on these predictors to build a prediction model. The AUC of the ROC curve was 0.915 for colorectal cancer in the training set and 0.836 in the validation set. Calibration plots demonstrated high prediction accuracy and good model calibration. DCA results indicated the prediction model provided greater net benefit compared with the extreme models at threshold probabilities of approximately 55%-95%. Conclusion The developed prediction model exhibits satisfactory discrimination, calibration, and clinical applicability. The model can serve as an auxiliary tool in distinguishing between colorectal adenoma and colorectal cancer in patients.

Efficacy and Safety of Spleen-strengthening Therapy in Treatment of Postoperative Colorectal Adenoma： A Meta-analysis / 中国实验方剂学杂志

ObjectiveTo evaluate the efficacy and safety of spleen-strengthening therapy in the treatment of postoperative colorectal adenoma. MethodRandomized controlled trials （RCTs） of spleen-strengthening therapy for postoperative colorectal adenoma published in the databases of China National Knowledge Infrastructure （CNKI）， Wanfang Data， VIP， SinoMed， PubMed， Cochrane Library， Embase， Web of Science， and Clinical Trials registry center from database inception to February， 2024 were retrieved and selected based on inclusion and exclusion criteria. The included RCTs were subjected to Meta-analysis using RevMan 5.3 software. ResultA total of 29 articles were included， involving 2 935 patients， with 1 462 in the experimental group and 1，473 in the control group. The Meta-analysis results showed that compared with conventional Western medical treatment alone， the experimental group that combined the spleen-strengthening therapy with conventional Western treatment had a significantly lower recurrence rate at six months post-surgery ［relative risk （RR）=0.45， 95% confidence interval （CI） ［0.37， 0.53］， P<0.000 01］， and at one year post-surgery （RR=0.54， 95%CI ［0.47， 0.63］， P<0.000 01）. Additionally， the experimental group showed significant improvement in clinical symptoms （RR=1.28，95%CI ［1.17，1.40］， P<0.000 01） and more pronounced effects in suppressing inflammatory factors， with no serious adverse reactions observed. The differences were all statistically significant. The analysis of the Chinese medicines used in the included articles revealed 28 prescriptions with 99 different drugs used 369 times in total. The most frequently used drug was Atractylodis Macrocephalae Rhizoma， followed by Codonopsis Radix， Poria， Glycyrrhizae Radix et Rhizoma， and Citri Reticulatae Pericarpium. Furthermore， correlation analysis showed that spleen-strengthening drugs were often used in combination with heat-clearing and toxin-removing drugs， qi-regulating drugs， and blood-activating drugs such as Hedyotidis Diffusae Herba， Citri Reticulatae Pericarpium， and Curcumae Rhizoma. ConclusionThe spleen-strengthening therapy demonstrates good clinical efficacy and high safety for patients with postoperative colorectal adenoma. However， due to the limitations in the quantity and quality of the included RCTs， more high-quality clinical trials are needed to verify these conclusions.

Unilateral parotid gland Simultaneously primary two different pathological tumors: a case report and literature review / 口腔疾病防治

Objective@#To explore the clinical manifestations, histopathological characteristics, diagnosis, treatment, and prognosis of simultaneous unilateral primary tumors of different pathological types in the parotid gland.@*Methods@#A case of simultaneous unilateral primary parotid gland tumors, i.e., adenolymphoma and basal cell adenoma, was reviewed and analyzed in combination with the literature.@*Results@#The patient discovered a lump in the right parotid gland area one month prior to presentation, and a tumor was palpated in the shallow lobe of the right parotid gland before surgery. According to MR images, the initial diagnoses were tumors of the shallow and deep lobes of the right parotid gland. The tumors of the deep and shallow lobes were excised with part of the gland, and the facial nerves were dissected under general anesthesia. Postoperative pathology revealed an adenolymphoma in the shallow lobe of the right parotid gland and a basal cell adenoma with cystic transformation in the deep lobe. The surgical effect was good, with no complications, and there was no recurrence after 1 year of follow-up. A review of the relevant literature showed that multiple primary tumors of the parotid gland can manifest as the simultaneous presence of two or more types of tumors on both sides or on one side, and the disease is mainly treated with surgery.@*Conclusion@#Multiple unilateral primary parotid gland tumors are rare. Imaging examinations need to be combined with clinical evaluations to prevent missed diagnoses. Surgery is the first treatment option, and patients with benign tumors have a good prognosis.

Giant adenoma of the gallbladder misdiagnosed as gallbladder carcinoma： A case report / 临床肝胆病杂志

One patient with gallbladder mass had transient jaundice and was diagnosed with gallbladder carcinoma by abdominal ultrasonography， contrast-enhanced CT， MRCP， and PET-CT. Surgical exploration showed enlarged gallbladder and a mass in the neck of the gallbladder pressing against the hilum of the liver， with no manifestation of tumor invasion， and there were no signs of liver metastasis. Only cholecystectomy was performed for the patient. The pathological diagnosis was tubular adenoma of the gallbladder without carcinogenesis. This case is characterized by a large gallbladder tumor， without marginal infiltration on imaging or malignant transformation based on pathology.

Expression and Clinical Significance of Insulin-like Growth Factor-1 in Pituitary Adenomas / 医学研究杂志

Objective To analyze the expression of insulin-like growth factor-1(IGF-1)in the serum of patients with pituitary adenomas and compare them according to different standards,investigating the expression of IGF-1 in pituitary adenoma and its clinical significance.Methods A total of 156 cases of pituitary adenomas admitted to the Second Affiliated Hospital of Kunming Medical Univer-sity from January 2019 to June 2021 were selected as the experimental group,and a total of 22healthy subjects during the same period were selected as the control group.To determinate the IGF-1 level by magnetic particle chemical luminescence immunoassay.The tumor di-ameter was obtained by combining the diameter measured on magnetic resonance imaging(MRI)with the diameter of postoperative tumor pathological specimen.The experimental group were divided into groups according to different clinical characteristics,and to compare the differences in IGF-1 levels between each subgroup and the control group.Results The levels of IGF-1 in patients with somatotroph adenoma,dual hormone and multihormone adenoma were higher than those in the control group and other types,and the differences were statistically significant(P＜0.05);the level of IGF-1 in giant adenoma patients was higher than those in the control group and other types,and the difference was statistically significant(P＜0.05);the level of IGF-1 in patients with invasive pituitary adenoma was higher than that in non-invasive patients and controls,and the difference was statistically significant(P＜0.05);Logistic regression a-nalysis showed that IGF-1 level and tumor diameter were risk factors for invasiveness of pituitary adenomas,the higher the IGF-1 level and the larger the tumor diameter,the higher the invasiveness risk;the level of IGF-1 in patients with pituitary adenoma within one month after surgery was significantly lower than that before surgery,and the difference was statistically significant(P＜0.05).Conclu-sion IGF-1 has a certain value in the diagnosis of different functional types of pituitary adenomas and the early invasiveness judgment of pituitary adenomas,and is expected to be used as a reliable indicator for postoperative follow-up.

Clinicopathologic features of stomach oxyntic gland neo-plasms on 49 patients / 中国现代普通外科进展

Objective:To analyze the clinicopathological features of gastric oxyntic gland neo-plasms.Methods:Forty-nine cases of stomach oxyntic gland neoplasms including oxyntic gland adenoma(OGA)and gastric adenocarcinoma of the fundic gland type(GA-FG)diagnosed in the Sec-ond Hospital of Shandong University from January 2016 to December 2020 were selected.The clini cal information,endoscopic appearance,histological features and immunophenotype were analyzed retrospectively,and followed up.Results:Age of the gastric oxyntic gland neoplasm patients ranged from 19 to 83 years old,with an average age of(57.3±2.4)years old.The male-to-female ratio was 24:25.Most of the lesions were located in the gastric body(27/49)and fundus(15/49).There were four endoscopic phenotypes:flat bulging,polypoid,flat and depression.In some lesions,there were dilated dendritic vessels.48 cases were single onset.The mean maximum diameter of lesions was(3.9±0.5)mm(1.0～7.0 mm).Seven cases showed submucosal invasion,and the inva-sion depth was less than 500 μm.The tumor consists of the dense glandular and the glandular con-nects to form a strip shape,which is irregularly branched and labyrinthlike under the microscope.These tumor cells were well differentiated and the morphology was similar to oxyntic gland cells.The chief cells were the predominant cells.The nucleus was mildly enlarged with slight pleomorphism and the mitosis was uncommon.The oxyntic gland neoplasms of the stomach were diffusely posi-tive for Mucin-6(MUC6)(100％)and Pepsinogen Ⅰ(83％),focally positive for H+/K+-ATPase(58％).Conclusions:The stomach oxyntic gland neoplasm is a new histology type with unique clinico-pathological features.The incidence of this neoplasm is low and the prognosis is good but it still needs long-term follow-up.

Adenoma detection rate and polyp detection rate among gastroenterology fellows and consultants in a tertiary hospital in the Philippines: A cross-sectional study

Background and Objective@#Colorectal cancer (CRC) is the third most commonly diagnosed cancer and the fourth leading cause of cancer mortality worldwide. Likewise in the Philippines, the prevalence of CRC has shown to be increasing. Colonoscopy, a screening procedure for CRC, has parameters to gauge quality of detection. One of which is the Adenoma Detection Rate (ADR). Higher ADR has been linked to improved cancer detection. This study aimed to determine the ADR and Polyp Detection Rate (PDR) among Gastroenterology practitioners in a tertiary government university hospital in the Philippines, estimate ADR from PDR, and identify factors associated with ADR.@*Methods@#An analytical, cross-sectional study among patients who underwent colonoscopy for the years 2021 and the first half of 2022 at the Central Endoscopy Unit (CENDU) of the Philippine General Hospital. Demographic data of fellows and consultants were collected through an online form, while those from patients were obtained from electronic records. Colonoscopy details and histopathology results were accessed through the hospital’s Open Medical Record System (MRS). ADR, PDR, and estimated ADR were computed using established formulas. To evaluate the strength of the relationship between the estimated and actual ADR, Pearson’s correlation coefficient was used. Chi-square analysis, Mann-Whitney U test, and Kruskal-Wallis H test were performed to identify the factors that might influence the ADR. A cut-off of p < 0.05 was considered statistically significant.@*Results@#The total computed ADR of consultants and fellows combined is 22%. The difference between the ADRs of Gastroenterology consultants and Fellows-in-Training is statistically significant at 31.6% and 18.7%, respectively (p= 0.017). The total Polyp Detection Rate is 57.6% while the weighted group average Adenoma to Polyp Detection Rate Quotient (APDRQ) is 0.4085 or 40.85%. The estimated ADR has a moderate degree of correlation with the actual ADR when an outlier was excluded (r=0.521 (95% CI, 0.072-0.795, p=0.0266). Significant factors related to ADR include endoscopists’ years of practice (p=0.020), number of colonoscopies done (p=0.031), and patient tobacco use (p=0.014).@*Conclusion@#The overall ADR among consultants and fellows is at par with the standard guidelines. A moderate degree of correlation exists between actual and estimated ADR when an outlier is excluded; however, more studies are needed to determine the APDRQ in the wider local setting. Longer years in practice, total number of colonoscopies performed, and patient tobacco use are associated with increased ADR.