Surgical management of primary undifferentiated pleomorphic sarcoma of the rectum: a case report and review of the literature.

Background: Undifferentiated pleomorphic sarcoma (UPS) is a malignant soft tissue tumor that has been reclassified from malignant fibrous histiocytoma with the development of the pathological diagnosis. It principally occurs in the extremities but rarely occurs in the rectum. We herein report a rare case of UPS arising in the rectum.

A rare solitary fibrous tumor in the ischiorectal fossa: a case report.

Background: A solitary fibrous tumor (SFT) is a rare mesenchymal tumor that occurs mostly in pleural sites, and an SFT occurring in the ischiorectal fossa is extremely rare. Because of the rarity, there are few reports detailing an SFT in the ischiorectal fossa.

Case Presentation: A pararectal tumor was incidentally found in a 42-year-old man during a routine medical examination.

[Vesico-appendiceal fistula caused by appendiceal cancer: a case report].

A case of vesico-appendiceal fistula caused by appendiceal cancer is reported. A 37-year-old male was admitted with the chief complaint of suspended dust in the urine. Under cystoscopy, a tumor (1 cm diameter) was found in the right posterior wall of the bladder.

Temporary claviculectomy approach for plexiform neurofibroma of the first intercostal nerve.

Plexiform neurofibroma at the thoracic inlet has rarely been reported and to our knowledge, the use of a temporary middle claviculectomy approach for thoracic inlet tumors has never been reported. We report a case of plexiform neurofibroma of the first intercostal nerve resected using a temporary claviculectomy approach. An abnormal shadow detected radiographically in a 16-year-old boy led to a diagnosis of neurofibromatosis 1 (NF-1) with a chest wall tumor at the thoracic inlet.