[Atypical retinitis pigmentosa in Laurence-Moon-Biedl-Bardet syndrome. Report of a case of chronic renal insufficiency under periodic hemodialysis treatment].

: A case of Laurence-Moon-Biedl-Bardet syndrome in a patient undergoing hemodialysis is reported. The principal characteristics of this congenital syndrome are described. A possible pathogenetic mechanism of the atypical form of retinitis pigmentosa (sine pigmento) is discussed.