Gastric teratoma of children--a case report with review of the literature.

A case of gastric teratoma in a 3-month-old male infant is reported. A large mass showing endogastric growth was located on the lesser curvature of cardiac region and measured 6.5 X 5 X 4 cm. Histologically the tumor was composed of the elements derived from three germ layers including squamous, cuboidal and high columnar epithelium with or without cilia, fat tissue, smooth muscle, cartilage and neural tissue. Large parts of these elements appeared to be predominantly mature but some of the neural tissue showed primitive immature structures. Forty-four reported cases of gastric teratoma were briefly reviewed.