Inflammatory pseudotumor of the pituitary: case report.
BACKGROUND
Inflammatory pseudotumor of the pituitary is a very rare nonneoplastic lesion. We describe a case of a patient with past history of lymphocytic meningitis.


METHODS
A 32-year-old man presented with polyuria, polydipsia, anorexia, abdominal discomfort, and panhypopituitarism. He had 2 episodes of lymphocytic meningitis in the last two years. Magnetic resonance image (MRI) disclosed a sellar and suprasellar mass with extension to the pituitary stalk. The patient underwent transnasal-transsphenoidal surgery to remove the lesion. Histopathological findings revealed mixed inflammatory cells composed mainly of lymphocytes, macrophages and extensive fibrosis.


CONCLUSIONS
Inflammatory pseudotumor of the pituitary, although rare, should be included in the differential diagnosis of a sellar and suprasellar mass.
Al-Shraim
Mubarak
M
Division of Pathology, St. Michael's Hospital, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.
Syro
Luis V
LV
Kovacs
Kalman
K
Estrada
Hernan
H
Uribe
Humberto
H
Al-Gahtany
Mubarak
M
D000328:Adult; D006104:Granuloma, Plasma Cell / Q000473:pathology* / Q000601:surgery*; D006801:Humans; D008297:Male; D010900:Pituitary Diseases / Q000473:pathology* / Q000601:surgery*