Intestinal duplication diagnosed preoperatively with double-balloon enteroscopy: an extremely rare case report and literature review.

Gastrointestinal duplications are congenital malformations that are usually observed in pediatric patients. Diagnosis in adulthood is quite rare, and preoperative diagnosis of gastrointestinal duplication is difficult, particularly in the small intestine. We encountered an extremely rare adult case of duplication of the jejunum, which showed a stomach-like form diagnosed using double-balloon enteroscopy (DBE).

[Laparoscopic Abdominoperineal Resection after Preoperative Chemoradiotherapy for Adenocarcinoma Associated with Anal Fistula].

A 72-year-old man had a chief complaint of anal pain and difficulty in defecation. He was diagnosed with adenocarcinoma by biopsy from a tumor of the anal canal. A computed tomography scan revealed neither regional lymph node metastasis nor distant metastasis.