Bardet-Biedl syndrome.

Tapetoretinal degeneration, obesity, polydactyly, mental retardation, and hypogonadism are the cardinal signs of Bardet-Biedl syndrome. Formerly grouped with Laurence-Moon syndrome, Bardet-Biedl has established itself as a separate entity. It is one of the rare systemic diseases associated with a form of retinitis pigmentosa. Presented here is a case report of a child first diagnosed with this condition. The importance of identifying the systemic signs, ocular involvement, electrophysiologic testing, genetics, and management are discussed.