Senior-Loken syndrome (SLSN) is a very rare autosomal recessive oculo-renal disease characterized by the association of nephronophthisis (NPHP), a chronic kidney disease, with retinal dystrophy. The disease is MONDO_0017842 (Senior-Loken syndrome). Also known as: Loken Senior syndrome, SLSN, nephronophthisis with retinal dystrophy, renal dysplasia-retinal aplasia syndrome, renal-retinal syndrome.