Recurrent pancreatitis contributing to choledochal cyst formation

We report three cases of choledochal cyst. The calibre of the common bile duct in each of them was demonstrated by ultrasonogram, CT scan, radiography and laparotomy to be almost normal before recurrent attacks of pancreatitis, following which the common bile duct was shown to become grossly dilated. This observation leads us to surmise that recurrent pancreatitis contributes to the formation of choledochal cysts.

Polyps and diverticula of the large intestine: a necropsy survey in Hong Kong

The study is based on a prospective survey of 200 necropsies, to determine the prevalence of colonic polyps and diverticula in Hong Kong. Adenomatous polyps were found in 34% of men and 19% of women. The corresponding figures for hyperplastic polyps were 22% and 15%. When compared with European countries having similar rates for colorectal cancer, the polyp pattern by type, prevalence, and distribution is very similar. For diverticula the prevalence rate in this study was only 5%; most of these were situated in the caecum. This is at marked variance to the European pattern.

Primary leiomyosarcoma of renal capsule

The renal capsule long has been suggested to be the origin of leiomyosarcoma of the kidney but this speculation has never been proved. We describe a case of leiomyosarcoma lying with the renal capsule. The radiographic, as well as the macroscopic and microscopic appearances provide convincing evidence of capsular origin.

Pan-caliceal ileoneocystostomy--a new operation for intrapelvic tuberculotic strictures of the renal pelvis

Intrarenal scarring with stricture formation is common in late cases of renal tuberculosis and has caused more loss of renal function than direct involvement by tuberculosis. The classical treatment of this condition is heminephrectomy for early cases and total nephrectomy for late cases. However, these destructive procedures are far from satisfactory. We describe a new operation, pan-caliceal ileoneocystostomy, that aims at draining the entire caliceal system into an ileal ureter, which thereby relieves the obstruction. Good results were obtained in 2 cases. This procedure also is applicable to cases of intrarenal scarring with stricture formation owing to other causes.