Occult oncocytoma of the lacrimal sac

Occult oncocytoma of the lacrimal sac.

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 c...

Angiotropic lymphoma occurring in a lacrimal sac oncocytoma.

This report describes a case of angiotropic variant of diffuse large B cell lymphoma within a benign oncocytoma of the lacrimal sac. The occurrence of this rare lymphoma within a benign neoplasm has not been documented previously. An 87 year old woman presented with a swelling over the area of the left lacrimal sac, which histological examination revealed to be an oncocytoma. Many small blood v...

Oncocytoma of the lacrimal caruncle.

Two cases of oncocytoma of the lacrimal caruncle are presented. This benign tumour is characterized by a uniform population of epithelial cells with abundant, finely granular, eosinophilic cytoplasm. The granules stain blue with Mallorys phosphotungstic acid hematoxylin and can be identified as mitochondria by electron microscopy. An additional 35 cases from the literature are reviewed. The tum...

Applied Endoscopic Anatomical Evaluation of the Lacrimal Sac

Introduction: Dacryocystorhinostomy (DCR), a popular surgical procedure, has been performed using an endoscopic approach over recent years. Excellent anatomical knowledge is required for this endoscopic surgical approach. This study was performed in order to better evaluate the anatomical features of the lacrimal apparatus from cadavers in the Isfahan forensic center as a sample of the Iranian ...

Carcinoma of the lacrimal sac.