Early cancer in congenital choledochal cyst.

We report a case of 35-yr-old woman with early cancer in congenital choledochal cyst. She had a five-year history of intermittent right upper abdominal pain and intermittent jaundice. In this period she had a few abdominal ultrasonographies, but the cholelithiasis had not been found.

Prognostic factors of gastrointestinal stromal tumors.

Gastrointestinal stromal tumors (GIST) are rare neoplasms of unknown etiology and pathogenesis. Their clinical behavior is very unpredictable and a reliable prognostic factor is lacking. The aim of this study was to analyze some prognostic factors and estimate which one is the most reliable.