Prostate carcinoma metastasis to extraocular muscles.
Overview
abstract
Prostate carcinoma, when metastatic, typically involves bone and produces both osteoblastic and osteolytic changes. Orbital involvement is uncommon and extraocular muscle enlargement is a rare presentation of metastatic prostate adenocarcinoma. The authors present 2 patients with prostatic tumor metastasis to extraocular muscles. One patient had single-muscle involvement; the other presented with bilateral progressive proptosis, upper eyelid retraction, and bilateral multiple extraocular muscle enlargement mimicking thyroid-associated orbitopathy. Clinicians should be aware that, although rare, prostate cancer can involve the extraocular muscles.
