Oncocytoma of the Lacrimal Gland: Case Report and Review of the Literature

Objective: Oncocytomas of the lacrimal gland are rare tumors. We report the eighth case in the literature. Design: Interventional case report and literature review. Intervention: Complete ophthalmologic and systemic examination followed by excisional biopsy and histopathologic examination. Results: A 40-year-old Hispanic woman was evaluated for a right-sided upper eyelid edema and pain on ocular motility. A month earlier an outside ophthalmologist had performed a conjunctival biopsy that disclosed chronic inflammation. Computed tomography and magnetic resonance imaging of brain and orbit demonstrated a right intraorbital extraconal soft tissue density mass that involved the lacrimal gland, upper eyelid and encroached both the superior oblique and superior rectus muscles. Histopathology showed a benign oncocytoma that replaced most of the lacrimal gland. Conclusion: Although rare, oncocytomas should be included in the differential diagnosis of any lacrimal gland tumors.