1/5. Cystic struma ovarii: a rare presentation of an infrequent tumor.CONTEXT: struma ovarii, a rare neoplasm, is a monophyletic teratoma composed of thyroid tissue. It is generally considered to account for less than 5% of mature teratomas. CASE REPORT: A diagnosis of struma ovarii may be the source of many diagnostic problems. It may be cystic and microscopic examination may only reveal a few typical thyroid follicles, resulting in confusion with other cystic ovarian tumors. Extensive sampling should be undertaken and immunohistochemistry may be decisive in establishing the thyroid nature of the epithelial lining. The authors report two cases of cystic struma ovarii, and discuss diagnostic criteria and the limitations of frozen biopsies in these tumors.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
2/5. Serous cystadenoma of the pancreas associated with obstructive jaundice.We herein report a case of pancreatic serous cystadenoma in a patient who presented with jaundice, and we provide a review of the literature. A 53-year-old man was admitted with complaints of jaundice and weight loss. With a preoperative diagnosis of pancreatic serous cystadenoma with obstructive jaundice, he underwent pylorus-preserving pancreatoduodenectomy. A cystic tumor partially protruding into the bile duct was observed in the pancreatic head. histology verified serous cystadenoma of the pancreas. Histologically, no atypia was proven in the epithelium. There have been only eight case reports dealing with serous cystadenoma of the pancreas with obstructive jaundice. Although serous cystadenoma of the pancreas has essentially a benign nature, pylorus-preserving pancreatoduodenectomy is the treatment of choice when available to avoid the recurrence of obstructive jaundice.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
3/5. Esophagogastric varices due to arterioportal shunt in a serous cystadenoma of the pancreas in von hippel-lindau disease.Von Hippel-Lindau (VHL) disease is an autosomal dominant inherited disorder characterized by extensively vascularized tumors and cysts in specific organs. Angiogenesis is a striking future of VHL disease with its characteristic cysts and well-vascularized tumors. The hypervascular nature of VHL lesions has been linked to the overproduciton of vascular endothelial growth factor (VEGF) through increased expression of hypoxia inducible factor-1alpha (HIF-1alpha). Here we describe a rare case of VHL disease with esophageal and gastric varices due to arterioportal shunt in a serous cystadenoma of the pancreas, which, upon immunohistochemical examination, exhibited HIF-1alpha and VEGF expression. rupture of esophageal varices was successfully treated with endoscopic injection sclerotherapy.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
4/5. Solid serous cystadenoma of the pancreas: MR imaging with pathologic correlation.We report a case of solid type serous cystadenoma of the pancreas. Computed tomographic and magnetic resonance (MR) images showed a hypervascular solid tumor that was difficult to differentiate from endocrine tumor of the pancreas. However, the tumor showed marked hyperintensity similar to that of hepatic cyst on MR cholangiopancreatography, indicating not a solid but rather a cystic nature. MR cholangiopancreatography (heavily T2-weighted image) is quite useful for clearly differentiating solid from cystic tumors.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
5/5. Laparoscopic excision of pelvic masses during pregnancy.ovarian neoplasms are infrequently found during early pregnancy and are typically benign corpus luteum cysts that regress. When a large mass persists or enlarges, surgical evaluation is mandated, preferably in the second trimester. To prevent the morbidity of a laparotomy and minimize length of stay, operative laparoscopy was performed on two pregnant women, gestational ages 18 and 15 weeks, with large ovarian tumors ranging in size from 10 to 18 cm. Laparoscopic salpingo-oophorectomy was successful in both patients, and frozen section confirmed the benign nature of the tumors. There were no complications and both pregnancies were continuing at the time of writing.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |