Two cases of oncocytoma in or near the lacrimal gland

Purpose: To report 2 cases of oncocytoma in the lacrimal gland or near the lacrimal caruncle. Cases: One was a 67-year-old female and the other was a 65-year-old male. The first case had developed swelling of the left upper eyelid associated with swollen lacrimal gland. The circlating blood showed slightly elevated value of TRAb or antibody to TSH receptor. She was diagnosed with lacrimal adenitis associated with Basedow disease. The lesion subsided after systemic treatment with cystemic corticosterodi. Similar episodes recurred three times during the following 9 years. The lacrimal tumor was totally excised after MRI showed enlarged tumor in the lacrimal gland. The lesion showed proliferation of oxyphilic cells with round nuclei in addition to eosinophilic granular cytoplasm. The second case showed a tumor in the right caruncle. The lesion was excised and was diagnosed as oncocytoma with similar findings. No recurrence had developed in both cases during one year of follow-up. Conclusion: Oncocytoma in the eyelids, including ones involving the lacrimal gland, has to considered in the differential diagnosis of ocular adnexal tumors.