title: A case of a clinically "silent" pheochromocytoma.
abstract: A case of a clinically "silent" pheochromocytoma is presented. The adrenal mass was incidentally discovered by abdominal ultrasonography and computed tomography. In the course of hospitalization, the patient was normotensive and asymptomatic. Plasma catecholamine levels were nearly normal, whereas urinary levels of catecholamine metabolites were slightly elevated. A glucagon provocative test and 131I-metaiodobenzylguanidine scintigram were useful for diagnosing such an atypical pheochromocytoma. A discussion of clinically-unsuspected pheochromocytoma is also presented.
authors.affiliation: Department of Internal Medicine, School of Medicine, Fukuoka University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Yoshida
authors.forename: M
authors.initials: M
authors.lastname: Sasaguri
authors.forename: A
authors.initials: A
authors.lastname: Kinoshita
authors.forename: M
authors.initials: M
authors.lastname: Ideishi
authors.forename: M
authors.initials: M
authors.lastname: Ikeda
authors.forename: K
authors.initials: K
authors.lastname: Arakawa
mesh_terms: D019797:3-Iodobenzylguanidine; D000310:Adrenal Gland Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002395:Catecholamines / Q000097:blood / Q000378:metabolism / Q000652:urine; D005934:Glucagon / Q000494:pharmacology; D006801:Humans; D007462:Iodobenzenes / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D010673:Pheochromocytoma / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D002395:Catecholamines; D007462:Iodobenzenes; D019797:3-Iodobenzylguanidine; D005934:Glucagon