Granular cell tumor of the lacrimal sac and nasolacrimal duct - No invasive behavior with incomplete resection

Objective: Granular cell tumors are rare tumors of the periorbital region, and we present the second such case in the lacrimal sac. The natural histor y and clinical behavior of these tumors is reviewed. Design: Case report. Methods: The clinical presentation, workup, surgical approach, and patholog y of a case of granular cell tumor of the lacrimal sac are presented. Results: There has been no recurrence of the lacrimal sac tumor with incomp lete resection. Conclusions: This case history further adds to the understanding of the bio logic behavior of granular cell tumors in the periorbital region. Ophthalmo logy 2000;107:1992-1994 (C) 2000 by the American Academy of Ophthalmology.