Orbital schwannoma arising within inferior rectus muscle: A rare orbital tumor.

PURPOSE: To report a rare orbital schwannoma arising within inferior rectus muscle in a young woman.

OBSERVATIONS: In this case report, we describe a young patient with slowly progressive proptosis for one year. Preoperative imaging was suggestive of a benign tumor arising within inferior rectus muscle, and histopathologic evaluation revealed an orbital schwannoma with cystic degeneration.

CONCLUSION AND

IMPORTANCE

This case report highlights the importance of including schwannoma in the differential diagnosis of any orbital tumor arising within muscle.