[Malignant melanoma of the gallbladder]

The authors present a case of secondary melanoma of the gallbladder, surgically discovered during a laparotomy for assumed biliary tract pathology. The primary tumor was a cutaneous melanoma at the right leg treated by surgery, four years before. At the laparotomy, the pancreas and the omentum contained also metastases. After cholecystectomy the cancerous evolution quickened and led to death after one year. The exceptional character of this observation lead the authors to review the literature.