[A Case of Laparoscopic Resection of Sigmoid Colon Cancer Complicated by an Iliopsoas Abscess Preceded by Abscess Drainage].

For colon cancer complicated by iliopsoas abscess, it is unclear whether surgery should be performed prior to abscess drainage. We were able to perform laparoscopic sigmoid resection safely after first draining the abscess. We believed it would be beneficial to avoid surgery in the presence of abscess and inflammation, and the minimally invasive operation was performed after improvements of the patient's general status and inflammation.

An unusual hamartomatous malformation of the rectosigmoid presenting as an irreducible rectal prolapse and necessitating rectosigmoid resection in a 14-week-old infant.

A 14-week-old female infant presented with an irreducible rectal prolapse and a large polypoid tumor at the tip of the prolapsed mucosa. The tumor and prolapsed rectum were resected. Four weeks after the operation, profuse rectal bleeding occurred and a second similar tumor was diagnosed by endoscopy in the sigmoid colon. Laparotomy, rectosigmoid resection, and endorectal pull-through were performed. At operation, the serosal surface showed ragged polypoid lesions and an abnormal angiomatous vascularization. The postoperative course was uneventful. The histology suggested a congenital mucosal malformation. This pathology is unique in our experience and we have been unable to find anything resembling it in the literature. At age two years a Sertoli cell tumor developed in the girl with pubertas precox and a recurrent colonic polyp of the Peutz-Jeghers type.