Abstract
Adenocarcinoma of prostate typically involves axial skeleton and has been infrequently reported in unusual sites like orbit. It is noteworthy that upto 1989, only 28 cases of occulo-orbital metastases of prostate cancer (PC) had been reported in the literature [1] . PC is mostly known to metastasize to the bony skeleton [2] . The lack of skeletal metastasis does not exclude the possibility of visceral/ distant metastasis, and serum PSA levels usually do not correlate with the extent of metastatic disease [3] . Here in, we report a rare case of unilateral orbital metastasis from PC.
Highlights
Among adults, orbital metastases are most commonly of epithelial origin and it would seem that orbital metastases are site specific, being not just a part of bony metastases [4]-[9]
prostate cancer (PC) accounts for only 3.6% of orbital metastases encountered in clinical practice
Serum PSA levels usually do not correlate with the extent of metastatic disease.[3]
Summary
Orbital metastases are most commonly of epithelial origin and it would seem that orbital metastases are site specific, being not just a part of bony metastases [4]-[9]. Several epithelial tumours have been documented to show orbital metastases, including oesophageal[10], breast[11], pancreatic[12] and lung[13] cancers. Metastatic carcinoma to the orbit constitutes only between 2.3% and 7% of all orbital tumours[14][15]. They are predominantly Bilateral, rarely unilateral orbital metastases are reported. It is noteworthy that upto 1989, only 28 cases of occulo-orbital metastases of prostate cancer (PC) had been reported in the literature.[1]. When PC presents with metastasis in the orbit, it is usually a late event and often the patient is in the terminal stages of the disease [6][7]. We are reporting a case of unilateral Orbital secondary from primary PC
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