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[Idiopathic hepatic adenoma in the adult].

Hepatic adenoma is an infrequent evenience, not wellknown till oral contraceptive diffusion in the 60s. The lesion may also be associated to the use of androgenic steroids, and to both type I and type III glycogen storage disease. Hepatic adenoma may be single or, more rarely, multiple. Recently the term of multiple adenomatosis has been adopted for the cases in which ten hepatic adenomas or more are found in a single liver. In this report, a case of hepatic adenoma involving a patient with no risk factors for such lesion as well as diagnosis and therapy are illustrated.