Suprasellar ectopic pituitary adenoma: case report and review of the literature.
The occurrence of a totally suprasellar ectopic pituitary adenoma in a 71-year-old man is described. The tumor was attached to the pituitary stalk, extending upward toward the third ventricle. No intrasellar lesion was observed. Histological examination revealed a pituitary adenoma with large numbers of eosinophilic cells with moderate nuclear polymorphism and rare mitosis. Immunohistochemical staining revealed that the tumor cells were strongly positive for anti-adrenocorticotropic hormone antibody. A review of five previously reported intracranial ectopic pituitary adenomas revealed that two were silent corticotropic tumors and two occurred with Cushing's syndrome.
Matsumura
A
A
Department of Neurosurgery, University of Tsukuba, Japan.
Meguro
K
K
Doi
M
M
Tsurushima
H
H
Tomono
Y
Y
D000236:Adenoma; D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D002828:Choristoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010911:Pituitary Neoplasms; D011859:Radiography