Role of Fine Needle Aspiration Cytology (FNAC) in the Diagnosis of Adult-Onset Retinoblastoma: A Case Report

Abstract

We report the role of fine needle aspiration cytology (FNAC) for suspected intraocular tumor in the case of a 25 year old man who presented with the chief complaint of a whitish reflex and painless diminution of vision in the right eye for 3 months. Examination revealed a large intraocular mass with overlying retinal detachment. B-scan ultrasonography revealed an intraocular mass with foci of intralesional calcification. Systemic workup was unremarkable. MRI of the brain and orbit ruled out extra ocular spread. Based on clinical suspicion of either amelanotic melanoma or adult-onset retinoblastoma, fine needle aspiration cytology (FNAC) was done which revealed retinoblastoma. The patient underwent primary enucleation of the right eye and histopathological analysis confirmed the diagnosis of retinoblastoma.