Heterotopic pancreas is a rare developmental anomaly usually reported as an incidental finding. We describe a 1 cm diameter gallbladder heterotopic pancreas identified at pathological study. The patient, a 23-year-old woman, was suffering from cholecystitis. She underwent cholecystectomy with an uneventful course.

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Despite the small number of patients, primary stenting for acute CAD seems to be safe and effective.

Anorectal melanoma is a rare disorder. There have only been a few cases reported and there is no consensus of treatment. We report a case of 50-year-old Caucasian man presenting intermittent prolapse of an anorectal mass during 6 months with occasional bleeding. Biopsies came up with the diagnosis of malignant melanoma. No distant metastases were found. He underwent an abdominoperineal resection due to internal sphincter invasion. A second tumour was diagnosed in final histologic examination: a dysplastic rectal polyp invaded by the melanoma (collision tumour). At 12 months of follow up he presented loco-regional recurrence (a single pelvic lymph node) and hepatic metastases. He was included in a study protocol comparing new medical treatments (nivolumab versus ipilimumab or both).

Emphysematous cholecystitis is a relatively rare variant of acute cholecystitis with infection by gas-producing organisms. Diagnosis involves the demonstration of gas within the lumen or wall of the gallbladder by ultrasound or CT scan. In contrast to acute cholecystitis, emphysematous cholecystitis occurs more commonly in elderly and diabetic patients, and is frequently associated with perforation and death. We report here a case of a 75-year old man who developed emphysematous cholecystitis.