title: Occult oncocytoma of the lacrimal sac.
abstract: Oncocytoma of the lacrimal sac is a rarely encountered clinical entity. We report the case of a 72-year-old female patient who was diagnosed to have bilateral nasolacrimal duct obstruction during a pre-cataract surgery screening. Subsequently, she underwent bilateral dacryocystectomy. Histopathological examination of the left lacrimal sac revealed a tumour composed of acini lined by oncocytic cells; features consistent with those of a lacrimal sac oncocytoma. Although rare, oncocytomas arising from the lacrimal sac may co-exist with a nasolacrimal duct obstruction. This report describes the histological and immunochemistry characteristics of oncocytomas and underscores the need to subject all excised lacrimal sacs to histopathological examination.
authors: National Reporting Centre for Ophthalmic Pathology, Centre for Sight, Hyderabad 500034, India ; Ocular Pathology Service, L.V. Prasad Eye Institute, Hyderabad, India.
authors: Kaustubh
authors: K
authors: Mulay
authors: Department of Oculoplastics and Ocular Oncology, L.V. Prasad Eye Institute, Hyderabad, India.
authors: Akshay
authors: A
authors: Nair
authors: Department of Oculoplastics and Ocular Oncology, L.V. Prasad Eye Institute, Hyderabad, India ; Oculoplastics and Ocular Oncology, Centre for Sight, Hyderabad, India.
authors: Santosh G
authors: SG
authors: Honavar
keywords: Lacrimal sac; Occult; Oncocytoma