McKittrick Wheelock syndrome secondary to adenocarcinoma of the rectum: case report and diagnostic considerations

Introduction: McKittrick-Wheelock syndrome is a rare entity characterized by chronic diarrhea, acute kidney injury, and hydroelectrolytic imbalance associated with a large rectal tumor, frequently a villous adenoma. Case report: A 69-year-old male with chronic diarrhea with mucus. He underwent a colonoscopy with biopsies, reporting adenocarcinoma of the rectum in situ, and underwent a robot assisted intersphincteric resection with colo-anal anastomosis and a protecitive ileostomy. Discussion: Described in 1954, this syndrome is manifested by electrolyte imbalance and acute renal injury secondary to diarrhea associated with a rectal villous adenoma, often with long lasting symptoms. The most frequent symptom being watery diarrhea with mucus. The definitive treatment consists of surgical resection. Conclusion: Although this is a rare pathology, it should be considered as a differential diagnosis in cases of chronic diarrhea associated with water and electrolyte disorders. (AU)

An Effective Management for Thalassaemic Patients during Pregnancy

Background : Presence of thalassaemia is considered high risk in pregnancy. The present study find out the role of antenatal and intrapartum care to improve the outcome of pregnancy in thalassaemia. Materials and Method : The prospective longitudinal study was carried out on 25 patients. CBC, LFT, Ferritin, Hb electrophoresis, serial USG was done. Chorionic villous sampling was offered to thalassaemic women to decrease the number of babies born with Thalassaemia. Furthermore, management and treatment options provided to mother to overcome the incidence of maternal and neonatal complications during current pregnancy. Results : 44% of thalassaemic pregnant women had HbE ? thalassaemia, 8% ? thalassaemia major and others had thalassaemia carriers, while only 20% of their partners showed ? thalassaemia trait. All patients were anemic and during delivery mean Hb% were 8.42 g/dl, MCH 22.09 pg, MCV 73.56 fl, MCHC 29.86 g/dl and ferritin 241.51 ng/ ml. Third trimester USG exhibited 32% developed IUGR (Intrauterine growth restriction). 40% patients received blood transfusion after delivery. ? thalassaemia trait was identified in 20% babies at 6 month. Conclusion : Postpartum haemorrhage is a major complication of thalassaemia in pregnancy. After delivery a thorough neonatal check-up and haematological work-up is important for prevention of neonatal mortality and early detection of thalassaemia.

Adenoma velloso de esófago en la mucosa ectópica gástrica: reporte de un caso / Villous adenoma of the esophagus in ectopic gastric mucosa: A case report

Resumen Introducción: Los adenomas vellosos son lesiones del tubo digestivo con tendencia alta a la malignidad. Su ubicación en parches de mucosa gástrica ectópica en el esófago cervical determina una presentación atípica de interés tanto clínico como patológico. Objetivo: Presentar un caso de adenoma velloso en la mucosa gástrica ectópica del esófago cervical. Métodos: Describir el caso de un paciente con diagnóstico de adenoma velloso y realizar una revisión de la literatura disponible hasta el momento. Resultados: Se identificó mediante un estudio histopatológico un adenoma tubulovelloso con displasia de bajo grado, cuya ubicación endoscópica era un parche de mucosa ectópica gástrica en el esófago cervical. Conclusiones: La ubicación de los adenomas vellosos en el esófago cervical puede predisponer al desarrollo de lesiones neoplásicas. La evaluación detallada de este segmento, con técnicas como la cromoendoscopia digital de alta definición, permiten la detección temprana de estas lesiones y su oportuna intervención.

Abstract Introduction: Villous adenomas are lesions of the digestive tract with a high tendency to malignancy. Its location in ectopic gastric mucosa patches in the cervical esophagus is an atypical presentation of clinical and pathological interest. Objective: To present a case of villous adenoma in ectopic gastric mucosa of the cervical esophagus. Methods: A case study of a patient with a diagnosis of villous adenoma is presented, as well as a review of the current literature. Results: A tubulovillous adenoma with low-grade dysplasia was identified by histopathological study. Its endoscopic location was a gastric ectopic mucosa patch in the cervical esophagus. Conclusions: The location of villous adenomas in the cervical esophagus may predispose to the development of neoplastic lesions. Detailed evaluation of this segment using techniques, such as high-definition digital chromoendoscopy, would allow for early detection and treatment of these lesions.

Villous adenoma of the renal pelvis: a common entity at an uncommon location

Villous adenoma is uncommonly seen in the urogenital tract and is even more rarely seen in the upper urinary tract and renal pelvis. Like colorectal adenomas, these neoplasms can transform into adenocarcinoma. The preoperative diagnosis is challenging due to their frequent association with hydronephrosis. Herein, we present the case of a villous adenoma of the renal pelvis in a 62-year-old man presenting with recurrent urinary tract infection. The computed tomography scan showed marked hydronephrosis but no suspicious mass in the right kidney. A laparoscopic right nephrectomy was performed. Gross examination revealed a dilated renal pelvis with an irregular exophytic lesion in the renal pelvis's upper surface. The histopathological examination showed slender, elongated villi with thin fibrovascular cores, consistent with villous adenoma morphology. Isolated villous adenomas have a favorable prognosis. However, the pathologist should undertake a search for an invasive component.

Tubulovillous adenoma of the duodenal papilla: radiological-endoscopic and anatomopathological correlation in the surgical proposal

SUMMARY Tubulovillous adenomas of the duodenal ampulla are rare neoplasms. The present report describes a case with radiological-endoscopic and pathological correlation in which the patient underwent duodenal pancreatectomy with good postoperative progression. With advanced imaging methods, especially magnetic resonance and endoscopic ultrasound, locoregional aspects and extraluminal, lymphovascular, and metastatic invasion have been increasingly discussed as contributors to therapeutic decision making. This progression improves lesion staging and is especially useful in selecting eligible candidates for endoscopic treatment.

RESUMO Os adenomas túbulo-vilosos da ampola duodenal são neoplasias raras. Neste trabalho apresentamos um caso com correlação radiológico-endoscópica e patológica, tendo a paciente sido submetida à duodenopancreatectomia com boa evolução pós-operatória. Com os avanços dos métodos de imagem, em especial da ressonância magnética e ultrassonografia endoscópica, aspectos locorregionais, além da invasão extraluminal, linfovascular e metastática, têm sido discutidos de maneira crescente como contribuintes na decisão terapêutica. Essa evolução contribui para o melhor estadiamento destas lesões e é especialmente útil para selecionar candidatos elegíveis ao tratamento endoscópico.

Lipoma arborescens en la articulación de la rodilla / Lipoma arborescens in the articulation of the knee

La Lipomatosis Sinovial es una entidad poco frecuente de la membrana sinovial, afecta con mayor frecuencia a la articulación de la rodilla, pudiendo presentarse en otras articulaciones. Ocurre en varones de la 5° o 6° década de la vida, de presentación monoarticular habitual. Su etiología es desconocida, pero se apoya un proceso reactivo más que neoplásico. Esta enfermedad tiene una morfología radiológica, macroscópica y microscópica característicamente arborescente, por infiltración adiposa del tejido subsinovial, que es clave para su diagnóstico. Presentamos el caso de un varón de 63 años, realizándose revisión de los hallazgos radiológicos y patológicos, así como su diagnóstico diferencial con otras entidades y su tratamiento.

Synovial Lipomatosis is a rare entity of the synovial membrane, most often affects the knee joint, and can occur in other joints. It occurs in 5th or 6th decade of life, men of usual monoarticular presentation. Its etiology is unknown and there is more a reactive process rather than neoplastic. This disease has a characteristically arborescent radiological, macroscopic and microscopic morphology, due to adipose infiltration of the subsinovial tissue, which is key for its diagnosis. We present the case of a 63-year-old male, reviewing the radiological and pathological findings, as well as its differential diagnosis with other entities and their treatment.

Prolapso rectal incarcerado secundario a adenoma velloso gigante / Incarcerated rectal prolapse due to a giant villous adenoma

Los adenomas vellosos pueden manifestarse con sangrado, diarrea, alteraciones hidroelectrolíticas (síndrome Mackittrick-Weelock), obstrucción intestinal, y, muy infrecuentemente, condicionar un prolapso rectal. El prolapso rectal es la protrusión de la pared completa del recto a través del canal anal, su presentación como prolapso rectal incarcerado es poco habitual. Cuando la reducción manual no es posible, la rectosigmoidectomía vía perineal o procedimiento de Altemeier es una buena opción quirúrgica; como alternativa puede realizarse una resección transanal del pólipo y la posterior reducción manual del prolapso rectal. Referiremos el caso de una mujer que acude al Servicio de urgencias presentando un prolapso rectal incarcerado con una masa ulcerada, friable, de 10 × 8 × 5 cm compatible con un pólipo velloso en la cara posterior del recto. Ante la imposibilidad de reducirlo se decide una resección transanal del pólipo con posterior reducción manual del prolapso rectal. Este caso es de interés por la infrecuente asociación entre un prolapso rectal incarcerado y un pólipo velloso gigante, con solo 4 casos comunicados en la literatura.

Villous adenomas may present with bleeding, diarrhea, electrolyte imbalance (Mackittrick-Weelock syndrome), obstruction, being a very rare cause of rectal prolapse. Rectal prolapse is a full thickness protrusion of the rectum through the anal canal and its presentation as an incarcerated rectal prolapse is very infrequent. If manual reduction is deemed impossible, perineal recto-sigmoidectomy, or Altemeier's procedure, is one of the best surgical options, as an alternative transanal excision of the polyp could be performed with subsequent manual reduction of the rectal prolapse. We report the case of a female patient, admitted to the emergency room presenting an incarcerated rectal prolapse with a friable ulcerated mass of 10 × 8 × 5 cm, compatible with a villous polyp in the back side of the rectum. Since manual reduction was considered not feasible, surgery was decided and a transanal excision of the polyp was performed, following a successful manual reduction of the rectal prolapse. This case is of particular interest for its unusual association of incarcerated rectal prolapse due to a giant villous adenoma, having only 4 cases been reported in the literature.

Clinicopathological Correlation of Endoscopic Duodenal Biopsies in a Tertiary Care Hospital in Haryana

The study included endoscopic duodenal biopsies received in the department of pathology, MMIMSR,Mullana, Haryana. 44 biopsies were included in the study. The most common presenting complaintwas pain abdomen followed by diarrhea. The neoplastic lesions commonly presented as carcinomawhereas the non-neoplastic lesions presented as inflammatory lesions on endoscopy. Non-neoplasticlesions were found to be common with villous atrophy predominating the list. Majority of the lesionswere non-neoplastic, presenting with pain abdomen & inflammatory findings on endoscopy. Theneoplastic lesions comprised of adenocarcinoma. A single case of ampullary carcinoma was alsonoted. Percentage of concordance between endoscopic & histologic diagnoses was calculated whereinduodenitis, scalloping, polypoidal & carcinomatous lesions showed 100%, 60.7%, 0% & 100%concordance between the two diagnostic modalities respectively. The conclusion of the study wasthat endoscopic examination alone might miss out in diagnosing majority of the lesions. So, histologicalexamination in adjunct with endoscopy should be considered as much more valuable diagnostic toolrather than endoscopy alone.

Gastric cancer during pregnancy with placental involvement: case report and review of published works

Gastric cancer involving the placenta during pregnancy is rare; however, we present 1 such case in this report. A 31-year-old Japanese woman was referred at 26 weeks of gestation for the evaluation of a swollen left supraclavicular lymph node. Biopsy revealed poorly differentiated adenocarcinoma, and esophagogastroduodenoscopy with biopsy of the stomach confirmed the diagnosis of gastric cancer. Her epigastric and back pain became more pronounced and her general status worsened, and we performed a cesarean delivery at 29 weeks. Microscopic examination of the placental specimen revealed poorly differentiated adenocarcinoma cells diffused into the intervillous space. Postpartum chemotherapy consisted of S-1 plus oxaliplatin. Unfortunately, this treatment was ineffective, and the patient died 3 months after delivery. The infant did well, without clinical or laboratory manifestations of metastasis. In patients with advanced gastric cancer during pregnancy, it is important to perform a microscopic examination of the placenta to evaluate for metastatic involvement.

Narrow-band imaging with magnification and the water immersion technique: a case-finding, cost-effective approach to diagnose villous atrophy

INTRODUCTION@#Narrow-band imaging with magnification endoscopy (NBI-ME) allows real-time visual assessment of the mucosal surface and vasculature of the gastrointestinal tract. This study aimed to determine the performance of NBI-ME combined with the water immersion technique (NBI-ME-WIT) in detecting villous atrophy.@*METHODS@#All patients who underwent gastroscopy were included. The duodenum was further examined with NBI-ME-WIT only after examination with white light endoscopy did not reveal a cause of anaemia or dyspepsia. Targeted biopsies were taken of visualised areas. NBI-ME-WIT findings were compared with the final histopathological analysis. We calculated the sensitivity (Sn), specificity (Sp), positive predictive value (PPV) and negative predictive value (NPV) of NBI-ME-WIT in detecting villous atrophy and the hypothetical cost saved by using a biopsy-avoiding approach.@*RESULTS@#124 patients (83 female) with a mean age of 46 (range 18-82) years were included. The most common indication for gastroscopy was abdominal pain (39%), followed by anaemia (35%), chronic diarrhoea/altered bowel habits (19%) and dyspepsia (6%). NBI-ME-WIT was able to detect all nine patients with villous atrophy - eight patchy and one total villous atrophy. The Sn, Sp, PPV and NPV of NBI-ME-WIT in detecting villous atrophy were 100.0%, 99.1%, 90.0% and 100.0%, respectively. Taking into account the cost of biopsy forceps (AUD 17) and pathology (AUD 140), this biopsy-avoidance strategy could have saved AUD 18,055 in these patients.@*CONCLUSION@#NBI-ME-WIT is a specific and sensitive tool to recognise and accurately diagnose villous atrophy. Biopsies can be avoided in patients with normal-sized villi, which may decrease the overall cost of the procedure.

Uso de nuevas técnicas y procedimientos endoscópicos en el diagnóstico y seguimiento de la enfermedad celíaca / Use of new techniques and endoscopic procedures in the diagnosis and monitoring of celiac disease / Uso de novas técnicas e procedimentos endoscópicos no diagnóstico e monitoramento da doença celíaca

Resumen: Desde que inició la toma de biopsias a través de métodos endoscópicos para el diagnóstico de enfermedad celíaca (EC), se ha intentado describir distintos marcadores macroscópicamente visibles que sugirieran o confirmaran la presencia de atrofia vellositaria en la zona estudiada. Algunos de estos signos son altamente específicos pero su sensibilidad es baja por lo que, por si solos, tienen escaso valor en el algoritmo diagnóstico. El objetivo de esta revisión es analizar la evidencia científica existente sobre la utilidad de las nuevas tecnologías y técnicas endoscópicas en la identificación de marcadores de atrofia vellositaria en el diagnóstico y seguimiento de la enfermedad celíaca Método. Se llevó a cabo una revisión descriptiva de bibliografía donde se buscaron artículos originales en las bases de datos Pubmed y LILACS en el periodo 2006-2016. Resultados. El valor de la cromoendoscopía digital para la búsqueda de marcadores endoscópicos de atrofia vellositaria ha sido escasamente estudiado La sensibilidad de NBI con magnificación se estima entre 83 y 95%. Los únicos trabajos con OBI e I-Scan evidenciaron especificidad y sensibilidad perfectas, pero únicamente en pacientes con alta probabilidad de ser celiacos o portadores de atrofia severa. Con respecto a la microscopía endoscópica, la endocitoscopía no parece mejorar el desempeño de la endoscopía de manera significativa, sin embargo, con solo dos trabajos con bajo número de pacientes, la endomicroscopía laser confocal ha mostrado mayor sensibilidad en la detección de marcadores de atrofia. La VCE tiene alta especificidad (95-100%) pero menor sensibilidad (89%) y su mayor utilidad se encuentra en objetivar alteraciones que están más allá del alcance de la endoscopía tradicional y valorar su extensión. No existen trabajos que evalúen específicamente su presencia con enteroscopía doble balón, balón único o espiral. Conclusiones. Algunas de las nuevas técnicas y tecnologías parecen ser altamente específicas pero poco sensibles en la detección de marcadores endoscópicos de atrofia vellositaria. Son necesarios más estudios para determinar el valor de técnicas de microscopía endoscópica como herramienta diagnóstica a futuro.

Abstract: Since endoscopic methods are used for biopsying the duodenum at diagnosis or follow-up in celiac disease, attempts have been made to find macroscopically visible markers that suggest or confirm the presence of villous atrophy in the studied area. Some of these signs are highly specific but their sensitivity is low so that, if alone, they have little value in the diagnostic algorithm. The objective of this review is to analyze the existing scientific evidence on the usefulness of new technologies and endoscopic techniques in the identification of markers of villous atrophy in the diagnosis and follow-up of celiac disease. Method. A descriptive review of literature was conducted, where original articles were sought in Pubmed and LILACS databases in the period 2006-2016. Results. The value of digital chromoendoscopy for the search of endoscopic markers of villous atrophy has barely been studied. Sensitivity of NBI with magnification is estimated between 83 and 95%. The only studies with OBI and I-Scan showed perfect specificity and sensitivity, but only in patients with high probability of being celiac or with severe atrophy. Regarding endoscopic microscopy, endocytoscopy does not seem to improve performance in a significant way, however, with only two studies with a small number of patients, confocal laser endomicroscopy has shown greater sensitivity in the detection of atrophy markers. The VCE has high specificity (100%) but low sensitivity and its greatest utility is finding alterations that are beyond the scope of traditional endoscopy and assess its extent. There are no studies that specifically evaluate the presence of the same signs with double balloon enteroscopy, single balloon or spiral. Conclusions. Some of the new techniques and technologies appear to be highly specific but less sensitive in the detection of endoscopic markers of villous atrophy. More studies are needed to determine the value of endoscopic microscopy techniques as a diagnostic tool in the future.

Resumo: Desde o início das biópsias através de métodos endoscópicos para o diagnóstico de CD, uma tentativa foi feita para descrever diferentes marcadores macroscopicamente visíveis que sugerem ou confirmam a presença de atrofia vilosa na área estudada. Alguns desses sinais são altamente específicos, mas sua sensibilidade é baixa, por si só, eles têm pouco valor no algoritmo de diagnóstico. O objetivo desta revisão é analisar a evidência científica existente sobre a utilidade de novas tecnologias e técnicas endoscópicas na identificação de marcadores de atrofia vilosa no diagnóstico e monitoramento da doença celíaca. Método. Foi realizada uma revisão descritiva da literatura onde os artigos originais foram pesquisados ​​nas bases de dados Pubmed e LILACS no período 2006-2016. Resultados. O valor da cromoendoscopia digital para a busca de marcadores endoscópicos de atrofia vilosa foi mal estudado. A sensibilidade do NBI com ampliação é estimada entre 83 e 95%. O único trabalho com OBI e I-Scan mostrou especificidade e sensibilidade perfeita, mas apenas em pacientes com alta probabilidade de serem celíacos ou portadores de atrofia grave. Em relação à microscopia endoscópica, a endocitoscopia não parece melhorar o desempenho da endoscopia de forma significativa, no entanto, com apenas dois estudos com um número reduzido de pacientes, a endomicroscopia confocal laser mostrou maior sensibilidade na detecção de marcadores de atrofia. O VCE tem alta especificidade (95-100%), mas menor sensibilidade (89%) e sua maior utilidade é objetivar alterações que estão além do alcance da endoscopia tradicional e avaliam sua extensão. Não há estudos que avaliem especificamente sua presença com balão duplo, bola única ou enteroscopia espiral. Conclusões. Algumas das novas técnicas e tecnologias parecem ser altamente específicas, mas não muito sensíveis na detecção de marcadores endoscópicos de atrofia vilosa. Mais estudos são necessários para determinar o valor das técnicas de microscopia endoscópica como ferramenta de diagnóstico no futuro.

A rare case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) translocation / 医学前沿

Splenic lymphoma with villous lymphocytes (SLVL) or splenic marginal zone lymphoma with circulating villous lymphocytes is rare, and prolymphocytic transformation of SLVL is rarer. At present, only one case of SLVL with t(8;14)(q24;q32) translocation has been reported. In this study, we report a case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) chromosome translocation that we inclined to SLVL with a prolymphocytic transformation. A 73-year-old female showed marked hepatosplenomegaly and high lymphocytosis (lymphocytes > 200 × 10/L). The abnormal lymphocytes had short coarse villi and round nuclei with prominent nucleoli. The immunophenotypes showed CD19, CD20, HLA-DR, CD22, CD5, Kappa, CD25, CD71, Lambda, CD7, CD10, CD23, CD34, CD33, CD13, CD14, CD117, CD64, CD103, and CD11c. The karyotype showed complex abnormality: 46XX,+ 3,-10, t(8;14)(q24; q32)[11]/46XX[9]. The cytoplasmic projection, immunological characteristics, and trisomy 3 chromosome abnormality supported the diagnosis of SLVL. However, the presence of prominent nucleoli and high lymphocytosis suggested prolymphocytic transformation, probably as a result of t(8,14) chromosome translocation. In this report, we described an unusual case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) translocation, which could provide help in the diagnosis and differential diagnosis of B-lymphocytic proliferative diseases.

Correlation of tyrosine phosphatase-1/2 (SHP-1,SHP-2) with indoleamine 2,3-dioxygenase (IDO) in villi and decidua of early pregnancy / 中国免疫学杂志

Objective:To explore the correlation of tyrosine phosphatase-1/2 (SHP-1,SHP-2) with indoleamine 2,3-dioxygenase(IDO) in maternal fetal interface.Methods: The expression of SHP-1,SHP-2 and IDO were detected by Western blot method and the relationship of the proteins was analysed,in human chorionic villi and decidua tissues of 30 cases of artificial abortion patients.Results:The expression of SHP-1,SHP-2 were positively correlated withthe expression of IDO in human chorionic villi and de-cidua;the expression of SHP-1,SHP-2 and IDO in decidual tissues were higher than those in the villi.Conclusion: Normal physiological state of pregnancy,SHP-1 and SHP-2 may be involved in the regulation of immune tolerance by positive regulation of IDO expression at maternal fetal interface.

Clinicopathological analysis of 5 cases of placental mesenchymal dysplasia / 临床与实验病理学杂志

Purpose To explore the clinicopathological features, diagnosis, differential diagnosis and prognosis of placental mesenchymal dysplasia. Method The clinicopathological data of 5 cases with placental mesenchymal dysplasia were retrospectively analysed and related literatures were also re-viewed. Results All of 5 patients were consciously fetal movement disappeared or found abnormal ultrasound results at routine examination of the pregnancy. The placentas were enlarged, partly with oedematous "grape-like" cysts. On histologic exami-nation, enlarged villi with varying degrees of edema contained abnormal thick walled fetal blood vessels. The chorionic vessels were expanded and congested, and some chorionic villi showed mesenchymal cell hyperplasia. In immunohistochemical staining, p57 was positive, and Ki-67 showed low expression. There was no the trophoblastic proliferation. It's mainly differential diagnosis was hydatidiform mole.2 cases were accompanied with stillbirth. Conclusion The diagnosis of placental mesenchymal dysplasia can be confirmed by pathology examination. When a cystic placenta is detected by ultrasound examination, placental mesenchymal dysplasia should be considered in the differential diagnosis.

Síndrome de McKittrick-Wheelock: una causa infrecuente de hipokalemia e injuria renal aguda. Caso clínico / McKrittick-Wheelock syndrome: report of one case

McKittrick-Wheelock syndrome is caused by chronic water and electrolyte hypersecretion from an intestinal tumor, usually a villous adenoma, located in the rectum or sigmoid. Patients often have dehydration, hypovolemic shock and kidney failure associated with hypokalemia, hyponatremia, hypochloremia and metabolic acidosis. We report a 62-year-old male, suffering chronic diarrhea for eight years who was admitted after a syncope. He had severe hypokalemia, hyponatremia, metabolic acidosis, hypovolemia and acute renal failure. After his metabolic disorders were corrected, a colonoscopy showed a large rectosigmoid tumor with the characteristics of a villous adenoma. During the follow up after the complete tumor resection, the patient has remained asymptomatic.

MRI findings of rectal villous tumors / 实用放射学杂志

Objective To improve the diagnosis of rectal villous tumors by analyzing MRI images.Methods MRI images of 15 patients with rectal villous tumors which had been surgically resected were reviewed retrospectively(9 cases of tubulovillous adenomas,6 cases of villous adenomas).Results Among 15 lesions,7 patients with villous tumors were characterized villous-like mass with wide stem,5 patients were nodular in shape,3 patients were papillary mass,and all of 15 patients showed hypointence on T1 WI,and slightly hypointence on T2WI.On DWI,9 lesions showed low signal in center of tumor and with significant increasing signal at the boundaries of the lesion,and other 6 patients showed slightly hyperintence homogeneously.On enhanced MRI,7 patients with villous tumors showed frond pattern enhancement,5 patients showed slightly homogeneous enhancement,and 3 patients showed cerebriform pattern enhancement.11 lesions had focal dysplasia varying degrees and 4 lesions had focal carcinomatous invasion which were greater than 3 cm in diameter,in which MRI revealed villous-like in shape with frond pattern enhancement in 2 lesions,and papillary shape with cerebriform enhancement in the other 2 lesions.Conclusion MRI appearances of rectal villous tumors are variable.MRI helps with the identification of specific features of rectal villous tumors and malignant degeneration.

Consumo crónico de olmesartán como causa de enteropatía "sprue-like" / Chronic consumption of olmesartan as a cause of "sprue-like" enteropathy

La diarrea es un efecto secundario habitual a la toma de fármacos, y en algunas ocasiones la enteropatía perdedora de proteínas tipo "sprue like" puede estar detrás de esta patología. El estudio de esta enfermedad puede suponer un desafío importante para el clínico, sobre todo en los casos que cursan con serología negativa para enfermedad celiaca. La atrofia vellositaria duodenal secundaria a la ingesta de micofenolato-mofetil y metotrexate es bien conocida y descrita desde hace tiempo, pero desde la inclusión en la posológica habitual de olmesartán como antihipertensivo de primera elección hemos objetivado un repunte importante de esta entidad. Debido al amplio uso de esta medicación, queremos poner de manifiesto esta enteropatía iatrogénica a través de dos casos clínicos ocurridos en nuestro hospital en 2014.(AU()

Diarrhea is a common side effect of medical treatment. "Sprue like" enteropathy may be behind this pathology. The study of this disease can be an important clinical challenge, especially in those cases with negative serology for celiac disease. Duodenal villous atrophy secondary to the intake of mycophenolate mofetil and methotrexate have been well known and described but since the inclusion of olmesartán as a first-line antihypertensive, we have seen an important rebound of this entity. Due to the wide use of this medication we want to report this iatrogenic effect through two clinical cases that occurred in our hospital in 2014.(AU)

Adenoma Velloso de Estómago: Presentación de un caso / Gastric Villous Adenoma: One case presentation

Los adenomas vellosos son una patología infrecuente en el tubo digestivo y muy especialmente en el estómago. Presentamos un caso de adenoma velloso de estómago en una paciente de 73 años. Morfológicamente correspondió a una lesión de 1.5cm tipo ip al cual le realizamos resección mucosal endoscópica y la cual histológicamente fue descrita como una lesión de tipo velloso. La paciente presentó hemorragia en el sitio de la lesión posterior al tratamiento endoscópico y la cual fue tratada en forma satisfactoria con tratamiento endoscópico mínimamente invasivo a base de adrenalina y argón plasma.

Villous adenomas are uncommon pathology in the digestive tube and very especially in the stomach. We present a case of adenoma, villous stomach in a 73-year-old patient. Macroscopally corresponded to one ip type 1.5 cm lesion to which you we perform endoscopic mucosal resection and which histologically was described as a type villous injury. The patient presented bleeding at the site of the lesion after the endoscopic treatment and which was treated satisfactorily with endoscopic treatment minimally invasive based on adrenaline and argon plasma.

Enteropatia associada à Olmesartana / Olmesartan associated enteropathy

A enteropatia induzida por olmesartana é uma entidade reconhecida recentemente como diagnóstico diferencial de atrofia vilosa. A apresentação clínica é semelhante à doença celíaca, porém a não resposta à retirada do glúten e sorologia antitransglutaminase negativa são chaves para o diagnóstico diferencial. A fisiopatologia é incerta, havendo especulações quanto à predisposição genética e mecanismo de ação da própria droga. A melhora clínica e histológica após a suspensão da medicação é a principal característica. Aqui reportamos um caso de enteropatia induzida por olmesartana de apresentação clínica aguda.(AU)

The olmesartan induced enteropathy is a recently recognized entity in the differential diagnosis of villous atrophy. The clinical presentation is similar to celiac disease, but transglutaminase negative sorology and noimprovement after gluten removal are key to the differential diagnosis. The pathophysiology is uncertain, withspeculations about genetic predisposition and the medication's mechanism of action itself. The clinical and histological improvement after drug discontinuation is the main feature. Here we report a case of Olmesartaninduced enteropathy with acute clinical presentation.(AU)

Diagnóstico prenatal de anomalías cromosómicas: Biopsia de vellosidades coriales y amniocentesis para cariotipo fetal / Prenatal diagnosis of chromosomal abnormalities: Chorionic villous sampling and amniocentesis for fetal karyotyping

Introducción: El diagnóstico prenatal temprano de anomalías cromosómicas requiere de técnicas invasivas, como la biopsia de vellosidades coriales (BVC) y la amniocentesis (AMC), con el fin de obtener células fetales, cultivarlas y obtener el cariotipo en los fetos con riesgo alto para estas anomalías, identificadas mediante marcadores ecográficos y bioquímicos desde las 11 semanas. Reportamos nuestra experiencia hasta junio del año 2016. Diseño: Estudio descriptivo longitudinal. Institución: Instituto Latinoamericano de Salud Reproductiva (ILSAR), Lima, Perú. Participantes: Fetos de primer y segundo trimestres del embarazo. Intervenciones: Se analizó los resultados del estudio de 400 fetos que cursaban el primer y segundo trimestre y que tenían riesgo alto para anomalías cromosómicas (mayor de 1/270 inicialmente y 1/100 desde el año 2012), resultado cuantificado utilizando la base de datos del Fetal Test de España más el resultado de los marcadores bioquímicos (riesgo combinado). El análisis del cariotipo fetal se realizó en muestras obtenidas por medio de 338 amniocentesis genéticas y 62 biopsias de vellosidades coriales realizadas durante el período comprendido de enero 2003 a junio 2016 en nuestro centro ILSAR. Principales medidas de resultados: Presencia de arcadores ecográficos y normalidad de los cariotipos. Resultados: Los marcadores ecográficos encontrados con mayor frecuencia fueron: higroma quístico (35,8%), translucencia nucal aumentada (13%), ductus venoso con onda de velocidad de flujo anormal (8,5%), dos o más marcadores asociados a anomalías fetales (13,7%). De 400 muestras estudiadas, 141 (35%) fueron cariotipos anormales: 64 (45%) T21, 35 (25%) T18, 21 (15%) 45X, 7 (5%) T13, 14 (10%) otras anomalías. No hubo complicación importante alguna atribuida al procedimiento invasivo. Conclusiones: En los fetos con riesgo alto para anomalías cromosómicas estudiados, el 35% tuvo cariotipo anormal, siendo las más frecuentes las trisomías de los cromosomas 21 y 18, seguidas de la monosomía del cromosoma X. El higroma quístico, la translucencia nucal aumentada y la presencia de 2 o más marcadores asociados a anomalías fetales fueron los hallazgos más frecuentes en la determinación del riesgo ecográfico. El higroma quístico mostró el mayor valor predictivo para anomalías cromosómicas.

Introduction: Early prenatal diagnosis of chromosomal abnormalities requires invasive techniques, including chorionic villous sampling (CVS) and amniocentesis (AMC) in order to acquire, culture and kayotype cells from fetuses at high risk for these abnormalities based on sonographic and biochemical markers present after week 11. We report our experience through June 2016.Design: Descriptive, longitudinal study. Setting: Instituto Latinoamericano de Salud Reproductiva (ILSAR), Lima, Peru. Participants: First and second trimester of pregnancy fetuses. Interventions: Results of the study of 400 first and second trimester fetuses at high risk for chromosomal abnormalities (greater than 1/270 initially or 1/100 starting in 2012) based on Spain Fetal Test database and the results of biochemical markers (combined risk). Fetal karyotype analysis was performed on samples obtained from 338 genetic AMC and 62 CVS from January 2003 to June 2016. Main outcomes measures: Presence of ultrasound markers and normality of karyotypes. Results: The sonographic markers of complications identified most frequently were the following: cystic hygroma (35.8%), increased nuchal translucency (13%), abnormal ductus venosus waveforms (8.5%), two or more markers associated with fetal anomalies (13.7%). Out of the 400 samples studied, 141 (35%) had abnormal karyotypes: 64 (45%) trisomy 21, 35 (25%) trisomy 18, 21 (15%) monosomy X, 7 (5%) trisomy 13, and 14 (10%) other abnormalities. No major complications were attributed to the invasive procedure. Conclusions: Among these fetuses at high risk for chromosomal abnormalities, 35% had an abnormal karyotype. The most frequent chromosomal abnormalities were trisomies 21 and 18, followed by monosomy X. Cystic hygroma, increased nuchal translucency, and the presence of 2 or more markers associated with fetal anomalies were the most common findings in determining the sonographic risk of abnormalities. Cystic hygroma showed the highest predictive value for chromosomal abnormalities.