Primary pituitary lymphoma diagnosis by FDG-PET/CT.

摘要

Primary pituitary lymphoma is extremely rare. We describe a 71-year-old man who presented with appetite loss and sudden visual loss. Brain magnetic resonance imaging showed a mass at the pituitary gland that was moderately and homogeneously enhanced with contrast media. F-18 fluorodeoxyglucose positron emission tomography combined with CT (FDG-PET/CT) performed for a systemic survey revealed focal moderate FDG uptake only in the pituitary gland. The mass was histologically diagnosed as non-Hodgkin lymphoma from a biopsy of the pituitary gland.