• Fibrous histiocytoma is a soft-tissue tumor that was first described in 1961. The orbit is a site of predilection. Chronic epiphora, which was caused by a mass involving the lacrimal sac, developed in a woman. She subsequently underwent dacryocystectomy. On pathological examination, the tumor was found to be a fibrous histiocytoma. This is, to our knowledge, the first reported case of a fibrous histiocytoma originating in the lacrimal sac.
Cole SH, Ferry AP. Fibrous Histiocytoma (Fibrous Xanthoma) of the Lacrimal Sac. Arch Ophthalmol. 1978;96(9):1647-1649. doi:10.1001/archopht.1978.03910060273018