Visual Loss from a Pituitary Mass: Collision Tumors of Prostatic Metastasis and Suprasellar Meningioma

Abstract

Central nervous system spread from prostate cancer is typically associated with raised prostate specific antigen (PSA) levels. The authors describe a unique case of a “collision tumor” of a prostatic metastasis to the pituitary, juxtaposed to a suprasellar meningioma, with normal PSA levels. This case also emphasizes the need to consider prostatic metastasis in the differential diagnosis of a pituitary mass in patients with a known prostatic cancer, despite the normal PSA levels.

Keywords

prostatic adenocarcinoma - pituitary metastasis - suprasellar meningioma - normal prostate specific antigen

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