Gastric adenomyoma (AM) is a rare, benign tumor, characteristically composed of glands and cysts, lined by columnar, flattened epithelia and a prominent smooth muscle stroma. Patients with gastric AM may be asymptomatic, or present as nonspecific gastrointestinal symptoms.
A research article to be published on April 21, 2010 in the World Journal of Gastroenterology addresses this question. The research team led by Dr. Wen-Yong Sun from Zhejiang Cancer Hospital reported a case of gastric AM seen in a 68-year-old man with a 1-week history of melena.