[Mixed adenoneuroendocrine carcinoma: case report].

IntroducciÓn: Mixed adenoneuroendocrine carcinoma is a rare tumor of the gastrointestinal tract with double differentiation into adenomatous and neuroendocrine carcinoma, each component with at least 30%.

Case Report: A 60-year-old female with acute abdominal pain. Surgical treatment was decided, finding a tumor at the level of the cecum and ascending colon, a right hemicolectomy and ileostomy were performed.

Erosion of a Tenckhoff catheter to the sigmoid colon: an uncommon delayed complication.

Continuous ambulatory peritoneal dialysis is one of the most commonly used therapies for patients with impaired renal function. Most frequent complications directly related to the catheter usually present within the first weeks, and range from catheter dysfunction to dialysis-associated peritonitis; bowel perforation while placing the catheter is uncommon, and it is usually assessed in the same surgical event. There are, however, delayed complications, and one of the least frequently described is erosion of the catheter into the bowel.