Retinal detachment associated with type III retinoblastoma regression after cryotherapy and external-beam radiotherapy.

Abstract

To report a child with rhegmatogenous retinal detachment originating from a focus of type III retinoblastoma regression after cryotherapy and external-beam radiation therapy. Retinal detachment and multiple retinal holes, which were closely associated with the calcified mass of the regressed retinoblastoma, were treated with cryotherapy and scleral buckle. Positioning the regressed tumor and the retinal holes on the scleral buckle closed the holes. Subretinal fluid gradually reabsorbed after surgery, and complete retinal reattachment resulted. Rhegmatogenous retinal detachment is rare in patients with retinoblastoma, and scleral buckle can successfully manage such cases. In our patient, the detachment probably resulted from retinal necrosis secondary to cryotherapy and external-beam radiation therapy.