Cystic brain metastasis from prostate cancer: A case report and literature review.

Parenchymal brain metastases from prostate cancer are rare and mostly appear in the terminal phase of the disease. Here, we report a case of cystic cerebral metastases in patient with prostate adenocarcinoma. This patient presented with one large parietal polycystic tumor and three other suspicious-looking nodular lesions as shown on magnetic resonance imaging. This is the twelfth reported case of prostatic brain metastasis occurring as a cystic intraparenchymal tumor in the literature.