Papillary Adenocarcinoma in a Gastric Duplication Cyst.

Gastric duplication cysts are rare and mostly present in the first year of life. In adulthood presentation is in the form of obstruction, ulceration, bleeding, fistulization etc. Malignancy is extremely rare with only 12 cases reported to date. We came across a gastric duplication cyst with papillary adenocarcinoma in a 63 year old man. He underwent cyst excision with radical subtotal gastrectomy. The awareness of such a condition made it possible for us to have a suspicion of malignancy preoperatively based on imaging and thus a radical surgery was performed. High index of suspicion is necessary to diagnose this condition preoperatively on CT scan. Literature review revealed that this is the first case to be reported from India.