Tricofoliculoma del conducto auditivo externo. Revisión bibliográfica / Trichofolliculoma in the external auditory canal. Bibliographic review

Introducción y objetivo: El tricofoliculoma es un tumor anexial de los folículos pilosos que excepcionalmente puede presentarse en el conducto auditivo externo. El objetivo de este artículo es revisar la bibliografía publicada sobre el tricofoliculoma localizado en el conducto auditivo externo a propósito de un caso diagnosticado en nuestro centro. Método: Revisión bibliográfica por dos revisores independientes en mayo 2020 en bases de datos actualizadas. Resultados: En la literatura se hallaron seis casos clínicos publicados de tricofoliculoma en conducto auditivo externo. Conclusiones: El diagnóstico histológico de tricofoliculoma de conducto auditivo externo. (AU)

Introduction and objective: Trichofoliculoma is an adnexal tumor of the hair follicles that may exceptionally occur in the external auditory canal. The objective of this article is to review the published literature on trichofoliculoma located in the external auditory canal about a case diagnosed in our center. Method: Literature review by two independent reviewers in May 2020 in updated databases. Results: In the literature, six published clinical cases of trichofoliculoma in the external auditory canal were found. Conclusions: The histological diagnosis of trichofoliculoma of the external auditory canal. (AU)

Fibrosis Severity as a Determinant of Cause-Specific Mortality in Patients With Advanced Nonalcoholic Fatty Liver Disease: A Multi-National Cohort Study.

BACKGROUND & AIMS: Little is known about the natural course of nonalcoholic fatty liver disease (NAFLD) with advanced fibrosis. We describe long-term outcomes and evaluate the effects of clinical and histologic parameters on disease progression in patients with advanced NAFLD. METHODS: We conducted a multi-national study of 458 patients with biopsy-confirmed NAFLD with bridging fibrosis (F3, n = 159) or compensated cirrhosis (222 patients with Child-Turcotte-Pugh scores of A5 and 77 patients with scores of A6), evaluated from April 1995 through November 2013 and followed until December 2016, death, or liver transplantation at hepatology centers in Spain, Australia, Hong Kong, and Cuba. Biopsies were re-evaluated and scored; demographic, clinical, laboratory, and pathology data for each patient were collected from the time of liver biopsy collection. Cox proportional and competing risk models were used to estimate rates of transplantation-free survival and major clinical events and to identify factors associated with outcomes. RESULTS: During a mean follow-up time of 5.5 years (range, 2.7-8.2 years), 37 patients died, 37 received liver transplants, 88 had initial hepatic decompensation events, 41 developed hepatocellular carcinoma, 14 had vascular events, and 30 developed nonhepatic cancers. A higher proportion of patients with F3 fibrosis survived transplantation-free for 10 years (94%; 95% confidence interval [CI], 86%-99%) than of patients with cirrhosis and Child-Turcotte-Pugh A5 (74%; 95% CI, 61%-89%) or Child-Turcotte-Pugh A6 (17%; 95% CI, 6%-29%). Patients with cirrhosis were more likely than patients with F3 fibrosis to have hepatic decompensation (44%; 95% CI, 32%-60% vs 6%, 95% CI, 2%-13%) or hepatocellular carcinoma (17%; 95% CI, 8%-31% vs 2.3%, 95% CI, 1%-12%). The cumulative incidence of vascular events was higher in patients with F3 fibrosis (7%; 95% CI, 3%-18%) than cirrhosis (2%; 95% CI, 0%-6%). The cumulative incidence of nonhepatic malignancies was higher in patients with F3 fibrosis (14%; 95% CI, 7%-23%) than cirrhosis (6%; 95% CI, 2%-15%). Death or transplantation, decompensation, and hepatocellular carcinoma were independently associated with baseline cirrhosis and mild (<33%) steatosis, whereas moderate alcohol consumption was associated with these outcomes only in patients with cirrhosis. CONCLUSIONS: Patients with NAFLD cirrhosis have predominantly liver-related events, whereas those with bridging fibrosis have predominantly nonhepatic cancers and vascular events.

Etiología y prevalencia de los cánceres colorrectales poscolonoscopia / Aetiology and prevalence of post-colonoscopy colorrectal cancer

INTRODUCCIÓN: La colonoscopia es el gold standard en la detección y prevención del cáncer colorrectal (CCR). No obstante, en la práctica clínica habitual nos encontramos con pacientes que desarrollan un CCR a pesar de que se habían sometido a una colonoscopia previamente. OBJETIVOS: Estudiar la prevalencia de CCR de novo o no detectados tras la realización de una colonoscopia y valorar los posibles factores de riesgo. PACIENTES: Se incluyen los pacientes diagnosticados de CCR registrados en la base de datos endoscópicos de nuestro hospital entre marzo de 2004 y septiembre de 2011. Identificamos los pacientes que tenían realizada una colonoscopia en los 5 años previos. Se recogieron: edad, sexo, comorbilidades e indicación de la colonoscopia, tamaño y localización del tumor, así como su grado de diferenciación, su clasificación TNM y las posibles causas. Posteriormente comparamos este subgrupo de pacientes con los que habían sido diagnosticados de CCR en su primera colonoscopia (CCR esporádico, grupo control). RESULTADOS: Se incluyeron 712 pacientes diagnosticados de CCR. Veinticuatro de ellos (3,6%) tenían una colonoscopia realizada en los 5 años previos (50% varones, 50% mujeres, edad media 72años). Estos CCR poscolonoscopia se atribuyeron: uno (4,2%) a colonoscopia incompleta, 4 (16,6%) a resección incompleta de adenoma, uno (4,2%) a biopsia fallida, 8 (33,3%) a «lesiones no detectadas» y 10 (41,7%) fueron CCR de nueva aparición. Los CCR poscolonoscopia eran de menor tamaño que los CCR esporádicos (3,2 vs 4,5cm, p < 0,001), principalmente localizados en colon proximal (62% vs 35%, p = 0,006); no hubo diferencias en cuanto al grado histológico (p = 0,125), pero sí una tendencia a presentar un mejor estadio TNM (p = 0,053). CONCLUSIONES: La tasa de CCR tras una colonoscopia previa en nuestra serie es del 3,6%. Las posibles causas de estos CCR se atribuyeron en su mayoría (58,4%) a factores relacionados al procedimiento endoscópico y, por tanto, evitables. Estos hallazgos reafirman la importancia de ajustarse a los indicadores de calidad de la colonoscopia. Los CCR poscolonoscopia fueron de menor tamaño, localizados fundamentalmente en colon derecho y con tendencia a presentar un estadio TNM más precoz

BACKGROUND: Colonoscopy is the gold standard for the detection and prevention of colorectal cancer (CRC). However, some individuals are diagnosed with CRC soon after a previous colonoscopy. AIMS: To evaluate the rate of new onset or missed CRC after a previous colonoscopy and to study potential risk factors. METHODS: Patients in our endoscopy database diagnosed with CRC from March 2004 to September 2011 were identified, selecting those with a colonoscopy performed within the previous 5years. Medical records included age, gender, comorbidities and colonoscopy indication. Tumour characteristics studied were localization, size, histological grade and TNM stage and possible cause. These patients were compared with those diagnosed with CRC at their first endoscopy (sporadic CRC-control group). RESULTS: A total of 712 patients with CRC were included; 24 patients (3.6%) had undergone colonoscopy within the previous 5 years (50% male, 50% female, mean age 72). Post-colonoscopy CRCs were attributed to: 1 (4.2%) incomplete colonoscopy, 4 (16.6%) incomplete polyp removal, 1 (4.2%) failed biopsy, 8 (33.3%) 'missed lesions' and 10 (41.7%) new onset CRC. Post-colonoscopy CRCs were smaller in size than sporadic CRCs (3.2cm vs. 4.5cm, P<.001) and were mainly located in the proximal colon (63% vs. 35%, P=.006); no difference in histological grade was found (P=.125), although there was a tendency towards a lower TNM stage (P=.053). CONCLUSIONS: There is a minor risk of CRC development after a previous colonoscopy (3.6%). Most of these (58.4%) are due to preventable factors. Post-colonoscopy CRCs were smaller and mainly right-sided, with a tendency towards an earlier TNM stage

Aetiology and prevalence of post-colonoscopy colorrectal cancer. / Etiología y prevalencia de los cánceres colorrectales poscolonoscopia.

BACKGROUND: Colonoscopy is the gold standard for the detection and prevention of colorectal cancer (CRC). However, some individuals are diagnosed with CRC soon after a previous colonoscopy. AIMS: To evaluate the rate of new onset or missed CRC after a previous colonoscopy and to study potential risk factors. METHODS: Patients in our endoscopy database diagnosed with CRC from March 2004 to September 2011 were identified, selecting those with a colonoscopy performed within the previous 5years. Medical records included age, gender, comorbidities and colonoscopy indication. Tumour characteristics studied were localization, size, histological grade and TNM stage and possible cause. These patients were compared with those diagnosed with CRC at their first endoscopy (sporadic CRC-control group). RESULTS: A total of 712 patients with CRC were included; 24 patients (3.6%) had undergone colonoscopy within the previous 5 years (50% male, 50% female, mean age 72). Post-colonoscopy CRCs were attributed to: 1 (4.2%) incomplete colonoscopy, 4 (16.6%) incomplete polyp removal, 1 (4.2%) failed biopsy, 8 (33.3%) 'missed lesions' and 10 (41.7%) new onset CRC. Post-colonoscopy CRCs were smaller in size than sporadic CRCs (3.2cm vs. 4.5cm, P<.001) and were mainly located in the proximal colon (63% vs. 35%, P=.006); no difference in histological grade was found (P=.125), although there was a tendency towards a lower TNM stage (P=.053). CONCLUSIONS: There is a minor risk of CRC development after a previous colonoscopy (3.6%). Most of these (58.4%) are due to preventable factors. Post-colonoscopy CRCs were smaller and mainly right-sided, with a tendency towards an earlier TNM stage.

[Meckel's diverticulum and enteroliths complicating Crohn's disease]. / Divertículo de Meckel y enterolitos como complicación de la enfermedad de Crohn.

We describe the case of a 43-year-old man recently diagnosed with ileal Crohn's disease complicated by a free peritoneal perforation of a Meckel's diverticulum and the presence of enteroliths in the intestinal lumen. The coexistence of Crohns disease, Meckel's diverticulum and enteroliths has rarely been reported. Meckel's diverticulum can hamper the management of Crohn's disease.

Pólipo hamartomatoso de la hipofaringe / Hamartomatous polyp of the hypopharynx

Presentamos el caso clínico de una mujer de mediana edad a la que se le descubre de forma casual, practicándole una endoscopia digestiva, una formación polipoide en hipofaringe. La extirpación tumoral por vía endoscópica reveló el diagnóstico histológico de hamartoma. Revisamos los procedimientos diagnósticos y terapéuticos utilizados en esta rara entidad (AU)

We present the clinical case of a polyp in the hypopharynx discovered incidentally while performing an upper digestive endoscopy in a middle aged woman. Endoscopic resection was performed, and the histological result was a hamartomatous polyp. We review the diagnosis and treatment of this rare entity (AU)

[Hamartomatous polyp of the hypopharynx]. / Pólipo hamartomatoso de la hipofaringe.

We present the clinical case of a polyp in the hypopharynx discovered incidentally while performing an upper digestive endoscopy in a middle aged woman. Endoscopic resection was performed, and the histological result was a hamartomatous polyp. We review the diagnosis and treatment of this rare entity.