Neuroblastoma of the Iris in Children.

Neuroblastoma of the iris is an extremely rare clinical entity. An otherwise healthy 2-month-old male infant presented to the oncology clinic with a nodular whitish iris lesion in his right eye. The excisional tumor biopsy was consistent with a pathological diagnosis of neuroblastoma with differentiation and negative MYCN gene mutation. Further systemic evaluation revealed a right adrenal mass with no metastatic lesion. The biopsy of the adrenal lesion was also consistent with neuroblastoma. After four courses of chemotherapy, the adrenal mass was completely resected. The patient underwent two additional courses of postoperative chemotherapy and continued retinoic acid treatment. The patient is under regular follow-up with no evidence of recurrence 36 months after the initial diagnosis. This is the first case report to present a histopathological verification of neuroblastoma of the iris. The authors suggest that neonates and infants who are diagnosed as having neuroblastoma undergo an ophthalmologic examination after the initial diagnosis to investigate the true incidence of small iris lesions in neuroblastoma that may have been unrecognized. Neuroblastoma should be included in the differential diagnosis of amelanotic iris lesions in infants and young children. [J Pediatr Ophthalmol Strabismus. 2019;56:e12-e16.].

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