Epstein-Barr virus negative smooth muscle neoplasm of the stomach in a young woman.

Gastric smooth muscle neoplasms are rare and poorly investigated malignancies. Their importance relies on differential diagnosis with more frequent neoplasms(e.g. GIST), on their often mild and deceitful clinical presentation and on their heterogeneous outcome. Moreover, the pathogenesis of gastric leiomyosarcoma seems to point to some acknowledged oncogenic factors such as radiations or oncogenic viral infections. Herein, we describe a case of metastatic gastric leiomyosarcoma in a young woman, previously diagnosed with acute lymphoblastic leukemia treated with chemoradiotherapy.