Senior-Loken syndrome (familial renal-retinal dystrophy) and Coats' disease.

Senior-Loken syndrome is a rare hereditary disease that combines a disorder resembling familial juvenile nephronophthisis with retinitis pigmentosa. Retinitis pigmentosa is even less frequently associated with exudative retinopathy. The patient, a 15-year-old boy, had hereditary renal-retinal dystrophy combined with an exudative vasculopathy of the Coats' type. The patient is on thrice-weekly hemodialysis after two kidney transplants failed. One eye became painful and blind and was eventually enucleated.