Primary Cecal Squamous Cell Carcinoma: A Case Report of a Rare Tumor with Poor Prognosis.

Squamous cell carcinoma of the colon is a rare tumor and primary cecal localization is unusual. This malignant condition is marked by a worst prognosis due to early local invasion. We report a case of a 46-year-old female patient admitted to the emergency department with symptoms of peritonitis.

Intestinal obstruction due to a left paraduodenal hernia: a case report.

Introduction: A left paraduodenal hernia is a rare congenital malrotational anomaly of the midgut that occurs in the paraduodenal fossa of Landzert to the left of the fourth duodenum. It is responsible for approximately 1% of small bowel obstructions.

Case Presentation: We report a case of left paraduodenal hernia combined with small bowel obstruction in a 47-year-old Mediterranean woman who had a history of recurrent abdominal pain.

Case note: retroperitoneal nonfunctioning paraganglioma.

Paragangliomas are extra-adrenal chromaffin tumours that develop at the expense of neuroectodermal cells of the autonomous nervous system. Retroperitoneal and nonfunctioning forms are very rare. They are often asymptomatic and can reach a substantial size.

Medial pancreatectomy for a neuroendocrine tumor invading the splenic artery and vein.

Context: Pancreatic tumors in the midportion have traditionally been treated by an extended right or left pancreatectomy. A medial or central pancreatectomy is an alternative technique for benign or low-grade malignant neoplasms located to the left of the gastroduodenal artery and close to the splenomesenteric confluence.

Case Report: A 38-year-old woman with no previous surgical history presented with epigastric abdominal pain.

Primary hydatid cyst of the retroperitoneum.

Retroperitoneal contamination may occur during the natural history of hydatid disease. Primary hydatid cyst of the retroperitoneum is extremely rare. The authors report a case of a giant retroperitoneal hydatid cyst.

Sacral hemangiopericytoma involving the retrorectal space: report of a case.

A primary hemangiopericytoma (HP) of the bone is rare, because the vast majority of these tumors arise in soft tissue. This report presents a case of a hemangiopericytoma in the sacrum (S1-S2) with extension to the retrorectal space. Only a few cases of osseous hemangiopericytomas in the sacrum and involving the retrorectal space have so far been reported.

Osteochondroma developing from the xyphoid appendix into an abdominal wall scar from a previous laparotomy.

We describe herein the case of a 45-year-old man who developed an osteochondroma from the xyphoid appendix into an abdominal wall scar from a laparotomy performed 4 years previously. To our knowledge, rare cases of osteochondroma of the xyphoid bone have been documented in the literature. As shown by the tumor's rapid development during a period of only 4 years, osteochondromas arise from, or grow well under, inflammatory and cicatricial conditions.