A case of perforated multiple gastric duplication cysts with five-layered appearance on ultrasonography.

A case of perforated multiple gastric duplication cysts is presented. One of the gastric duplication cysts without perforation was seen on ultrasonography (US) with the following specific findings of gastric duplication cysts: a five-layered appearance, fold-like structures in the wall, and blood supply from the gastroepiploic artery. Other cysts with perforation presented with irregular and thin walls with a lack of the "double-wall sign" on US. These characteristic findings may be specific to perforated multiple gastric duplication cysts.