J Neurol Surg A Cent Eur Neurosurg 2013 Dec 30;74 Suppl 1:e81-4. Epub 2012 Jul 30.
Department of Neurosurgery, Greater Manchester Neurosciences Centre, Salford Royal Foundation Trust, Manchester, United Kingdom.
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.