Gastric leiomyoblastoma in a child.

A gastric leiomyoblastoma can occur in any age group, but the prognosis and sex distribution are different in the child-adolescent group than in adults. In the adult, the lesion is generally considered to be benign, though in the child-adolescent group it may metastasize to regional lymph nodes. The possibility of a leiomyoblastoma is suggested by multicentric intramural gastric tumors discovered in a female child or adolescent who has had gastrointestinal hemorrhage.