Primary epithelial tumors of the lacrimal gland; a retrospective analysis of 22 patients

This study analyzed the clinical and histopathological aspects, treatment and prognosis of 22 patients with primary epithelial tumors of the lacrimal gland treated in a single institution over 25 years. 191 lacrimal gland lesions retrieved from the archives of the Department of Pathology, Erasmus University Medical Center, were retrospectively reviewed. The clinical and surgical pathology files of 22 primary epithelial neoplasms (16 benign; 6 malignant tumors) were studied. All benign tumors were pleomorphic adenomas; 50% of the malignant neoplasms were adenoid cystic carcinomas. The mean time from complaint to diagnosis was 3 years for benign tumors and 6 months for malignancies. Most benign tumors were treated by local excision; no recurrences occurred. Treatment of malignant tumors varied but generally involved extensive surgery with postoperative radiotherapy. 50% of these patients showed regional and/or distant metastasis. 33% of patients with malignancy died of their disease. Most primary epithelial tumors of the lacrimal gland are pleomorphic adenomas. They have a long duration of symptoms before diagnosis, are treated by limited surgery and recur infrequently. Malignant tumors have a short duration of symptoms, are sometimes mistaken for inflammatory disease, and are, even in case of aggressive surgery, characterized by a high rate of local recurrence and metastasis.

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