Schistosomiasis Presenting as a Case of Acute Appendicitis with Chronic Mesenteric Thrombosis.

The manifestations of schistosomiasis typically result from the host inflammatory response to parasitic eggs that are deposited in the mucosa of either the gastrointestinal tract or bladder. We present here a case of a 50-year-old gentleman with a rare gastrointestinal presentation of both schistosomal appendicitis and mesenteric thrombosis.

Choriocarcinoma arising in a serous carcinoma of ovary: an example of histopathology driving treatment.

Background: Choriocarcinoma within an ovarian carcinoma is exceptionally rare. Nevertheless, recognition of this mixed tumour is important for administration of appropriate chemotherapy.

Case: A 65-year-old woman underwent resection of an ovarian mass after presenting with a pelvic mass and breast tenderness.

Two for one: coexisting ulcerative colitis and Crohn's disease.

Three cases of coexisting ulcerative colitis and Crohn's disease are presented. In the first case, the patient had a long-standing history of ulcerative proctitis before developing Crohn's colitis. In the two remaining cases, the patients presented initially with Crohn's disease of the ileum and, subsequent to resection, developed ulcerative colitis.

EBV-associated perianal Hodgkin's disease in an HIV-positive individual.

Hodgkin's disease (HD) has a higher incidence in HIV-positive individuals. It tends to occur at extranodal sites, frequently exhibits an unfavorable histological type with large numbers of neoplastic cells, and almost invariably harbors Epstein-Barr Virus (EBV). We describe a case of a 33-year-old HIV-positive man who presented with anal pain from a 4-cm mass in the anorectal canal.