Subtotal gastrectomy for giant gastric trichobezoar.

We present the case of a 22-year-old patient with a relevant previous history of trichophagia (Rapunzel Syndrome) in adolescence who presented Giant Gastric Trichobezoar that required subtotal gastrectomy for its resolution.

Preliminary experience of the use of a self-expanding nititol stent in refractory variceal bleeding: a real-world study.

Background And Aims: The fully-covered self-expanding metal stent (SEMS) has a role in the management of refractory acute variceal haemorrhage. The aim of this study was to evaluate its effectiveness and complications in real-world practice.

Patients And Methods: An observational, descriptive, multicenter study was carried out.

Primary malignant melanoma of the colon and the importance of an adequate anatomopathological analysis.

Primary malignant melanoma of the colon is an extremely rare tumor due to the absence of melanoblasts in this segment of the digestive tract. We report the case of a patient presenting an ulcerated lesion with a neoplastic appearance in the dentate line during a coloscopy. After chemotherapy and radiotherapy, surgical amputation was performed.

Unusual presentation of biliopancreatic cancer as primary retroperitoneal tumor.

Primary retroperitoneal tumors are little-known neoplasias and consequently, difficult to diagnose. We report an extremely unusual case of a biliopancreatic adenocarcinoma with retroperitoneal localization simulating a primary retroperitoneal tumor. As far as we know, there are no similar cases published up to date.

Underwater versus conventional EMR of large nonpedunculated colorectal lesions: a multicenter randomized controlled trial.

Background And Aims: Underwater EMR (UEMR) is an alternative procedure to conventional EMR (CEMR) to treat large, nonpedunculated colorectal lesions (LNPCLs). In this multicenter, randomized controlled clinical trial, we aimed to compare the efficacy and safety of UEMR versus CEMR on LNPCLs.

Methods: We conducted a multicenter, randomized controlled clinical trial from February 2018 to February 2020 in 11 hospitals in Spain.