Pancreaticobiliary maljunction is a congenital anomaly in which the junction between the pancreatic duct and the common bile duct is located outside the sphincter of Oddi. It is well known that pancreaticobiliary maljunction is frequently associated with carcinoma of the biliary tract. We report a case of metachronous cancer of the gallbladder and pancreas associated with pancreaticobiliary maljunction and cystic dilatation of common bile duct in a 68-year-old Tunisian woman who underwent a cholecystectomy for acute cholecystitis. The pancreatic tumor was an adenosquamous carcinoma. Pancreaticobiliary maljunction allows for pancreatobiliary or biliopancreatic reflux which may induce biliary tract carcinoma. Few cases of multifocal cancer associated with this anomaly have been reported. The association with pancreatic carcinoma remains rare. Close attention should be given to both the biliary tract system and pancreas during the long-term follow-up of patients with pancreaticobiliary maljunction, especially after they have undergone a choledochojejunostomy.

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Hydatid cyst is a parasitic infection due to the larval stage of the tapeworm Echinococcus. It most commonly involves the liver and lung. Location at unusual sites in the body can have atypical presentations and poses a diagnostic challenge. Herein, the authors report a new case of hydatid disease involving the peritoneum and the tunica vaginalis of a cryptorchid testicle in a 57-year-old patient. They conclude that hydatid disease should be kept in mind when a cystic lesion in encountered in the testicle or the peritoneum in endemic areas.

Sarcomatoid carcinoma is a rare type of gallbladder cancer with less than 100 cases reported in the literature. Preoperative diagnosis is difficult due to nonspecific clinical and radiological findings. Its prognosis is poor due to rapid progression and a high short-term recurrence rate. The definitive diagnosis relies on histopathological examination.