CASE REPORTS
JOURNAL ARTICLE
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Adult onset retinoblastoma: A diagnostic dilemma.

Orbit 2016
Retinoblastoma is the most common intraocular tumor of childhood. About 95% of retinoblastoma cases are diagnosed before the age of 5 years. Not more than 30 cases of Adult-onset retinoblastoma have been reported in literature. A 32 year old male presented with a painful blind eye. There was sudden loss of vision accompanied by severe pain and redness in right eye about 1 year ago, for which some surgery was done with neither a gain in vision nor any relief from pain. Then he was put on maximum tolerable medical therapy, later cyclocryotherapy was done. Now he presented to us with complains of extreme pain and bleeding from right eye since 2 days. There is no history of any ocular trauma. Right eye had no perception of light & showed anterior staphyloma with perforation. Right eye evisceration was done & material sent for histopathological examination, which revealed an adult-onset retinoblastoma. CECT scan revealed thickening of optic nerve throughout its entire length with contrast enhancement. He was further taken up for enucleation of residual sclera with maximum optic nerve stump removal to reconfirm the diagnosis. Histopathological examination revealed tumor deposits present in orbital soft tissue, resection margins and optic nerve cut end.Retinoblastoma presenting in adult age creates a diagnostic dilemma because of its low frequency and atypical features. We want to highlight the importance of high clinical suspicion and imaging modalities before taking any patient for evisceration with unexplained vision loss. One should send the eviscerated material for histopathological examination.

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