Metastatic Prostate Cancer to the Optic Canal: A Large-Cohort Analysis
Abstract
Prostate cancer (PCa) can present with metastases in rare cases, including those to the optic canal. Currently, no guidelines exist for managing PCa metastases in this patient population. This article aims to examine optic canal metastases through a large-cohort analysis. It involves a systematic review of the literature through a pooled analysis of published cases of PCa with optic canal or orbital metastasis, including one case previously reported from our institution. A subgroup analysis was employed to compare cases with optic metastases as their initial PCa presentation, hormone-naive (HN), versus those with optic metastases after PCa diagnosis, hormone-refractory (HR). A total of 45 patients with ocular metastasis from PCa were included in this study. The mean age at diagnosis overall was 66.8 years (range: 45-85 years). Moreover, 16 cases (50%) had deceased, with a median time-to-death of 22 (range: 2-84) months. Regarding subgroup analysis, the mean age at diagnosis was 69.5 years (53-85 years) in the HN group and 64.5 years (45-83 years) in the HR group. With regard to reported survival, 10 (62.5%) cases belonged to the HN subset with a median follow-up duration of 12 (range: 1.5-36) months. In terms of reported mortality, 10 (62.5%) were from the HR subset with a median time-to-death of 32.5 (range 0.5-84) months. Our study constitutes the largest and most comprehensive examination of patients with optic canal metastases due to PCa so far. While optic canal…
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