title: [Giant internal carotid artery aneurysm simulating pituitary adenoma].
abstract: Giant aneurysm projected into the sellar region is a rare cause of hypopituitarism and is usually associated with atherosclerosis, fibromuscular dysplasia and pituitary radiation therapy. We report the case of a 78-year-old patient presenting a giant internal carotid artery aneurysm disclosed by clinical features of hypopituitarism and cranial nerves compression (optic and abducent). Computed tomographic scans, magnetic resonance images and cerebral angiography were performed and showed the aneurysm. Cerebral angiography confirmed concomitant atherosclerosis and fibromuscular dysplasia. After evaluation of risk/benefit, no surgical treatment was proposed. Replacement endocrine therapy with glucocorticoid and levothyroxine was initiated followed by a satisfactory clinical response.
authors.affiliation: Disciplina de Endocrinologia, Departamente de Clínica Médica, Universidade Federal do Triangulo Mineiro, Rua Getúlio Guaritá s/n, 38025-440 Uberaba, MG. borgmf@uol.com.br
authors.forename: Fabiano Zaidan
authors.initials: FZ
authors.lastname: Borges
authors.forename: Beatriz P
authors.initials: BP
authors.lastname: Ferreira
authors.forename: Elisabete A M R
authors.initials: EA
authors.lastname: Resende
authors.forename: Ezequiel N
authors.initials: EN
authors.lastname: Neto
authors.forename: Wilson A A
authors.initials: WA
authors.lastname: Borges
authors.forename: Ricardo S M
authors.initials: RS
authors.lastname: Oliveira
authors.forename: Maria de Fátima
authors.initials: Mde F
authors.lastname: Borges
mesh_terms: D000236:Adenoma / Q000175:diagnosis*; D000368:Aged; D000783:Aneurysm / Q000175:diagnosis*; D002340:Carotid Artery Diseases / Q000150:complications / Q000175:diagnosis*; D002343:Carotid Artery, Internal / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007018:Hypopituitarism / Q000209:etiology; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D010911:Pituitary Neoplasms / Q000175:diagnosis*