[Unusual cause of gastric bleeding: leiomyoma]. / Rara causa di sanguinamento gastrico: il leiomioma.

The gastric leiomyoma is a rare non-epithelial tumor of the stomach that can either be asymptomatic (autoptical diagnosis) or, on the contrary, suddenly appear with severe gastric hemorrhage. The authors review the literature and report their own experience concerning 6 cases of gastric leiomyoma observed during 5 years. They discuss the clinical presentation, the difficulties of diagnosis and the therapeutic choices.

[Granulosa cell tumor of Abrikossof]. / Il tumore a cellule granulose di Abrikossof.

The authors report a case of Abrikossof's tumor that came under their observation. The reappraisal of the literature permits to review on this disorder that was unknown until few years ago. Electronic microscope and immunohistochemical study allowed to recognize the real origin of this tumor. It arises from peripheric nervous tissue particularly from Schwann's cells. This neoplasm must be considered as benign, especially when of small dimensions. In case of rapidly growing or larger than 8 cm forms a widely exeretic surgery and a careful follow-up, because of the possibility of finding tumors in other district of the body.