A fatal case of carcinoma arising from a pilonidal sinus tract.

We report a male patient with carcinoma arising on the basis of neglected sacrococcygeal pilonidal sinus disease. Following initial operation, performed without suspicion of malignancy, histology demonstrated cellular atypia and an increased mitotic rate. A second, wider tissue excision was recommended but the patient declined further surgery.

Eosinophilic enterocolitis and visceral neuropathy with chronic intestinal pseudo-obstruction.

A patient is described who was found to have both eosinophilic enterocolitis and visceral neuropathy with chronic idiopathic intestinal pseudo-obstruction. The etiology and pathogenesis of this rare combined disorder of the gastrointestinal tract are discussed. Although eosinophilic enterocolitis is amenable to conservative treatment, surgery may be necessary for palliation in selected patients with pseudo-obstruction due to visceral neuropathy.

Hepaticocystic duct--a case report.

A case of an anomalous extrahepatic biliary system is reported in which the common hepatic duct was found to enter the gallbladder, whereas the cystic duct drained the entire biliary system into the duodenum. In this case, the gangrenous gallbladder was removed and the continuity between the common hepatic duct and the gastrointestinal tract was restored by means of Roux-en-Y anastomosis. The identification and treatment options of this rare anomaly are briefly discussed.