[Nonfunctioning adrenal cortical adenoma: a case report].

A case of nonfunctioning adrenal cortical adenoma is presented. A 56-year-old woman was admitted with the chief complaint of asymptomatic microscopic hematuria. Adrenal tumor was found accidentally by computed tomography scan during evaluation for hematuria. A venogram and adrenal scan confirmed left adrenal neoplasm. Endocrine studies were normal. Surgical extirpation was performed and pathological examination revealed 2.2 X 2.0 X 2.0 cm left adrenal cortical adenoma. Reports of nonfunctioning adrenal cortical adenoma in the Japanese literature were reviewed and a discussion was made on this rare condition.