A 50-year-old man presents with a painless, slowly progressive superotemporal orbital mass over 3 years. The globe is displaced inferomedially. CT shows a well-circumscribed, lobulated mass in the lacrimal gland fossa with pressure remodeling of the bone. The most likely diagnosis is:
- A Adenoid cystic carcinoma of lacrimal gland
- B Pleomorphic adenoma of lacrimal gland ✓
- C Dacryops
- D Lacrimal gland lymphoma
Correct answer: B. Pleomorphic adenoma of lacrimal gland
Explanation
Pleomorphic adenoma (benign mixed tumor) of the lacrimal gland presents as a painless, slowly progressive superotemporal mass in middle-aged adults, with inferomedial globe displacement and smooth bony remodeling on CT. Adenoid cystic carcinoma presents more rapidly with pain and bony destruction. Dacryops is a lacrimal duct cyst, and lymphoma typically presents with a diffusely enlarged lacrimal gland without bony remodeling.
Reference: Rootman's Diseases of the Orbit, 3rd ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.