<unk>  (BBS) is a ciliopathic human genetic disorder that produces many effects and affects many body systems. It is characterized by rod/cone dystrophy, polydactyly, central obesity, hypogonadism, and kidney dysfunction in some cases. Historically, slower mental processing has also been considered a principal symptom but is now not regarded as such.
Bardet–Biedl syndrome
Prader–Willi syndrome
Schinzel–Giedion syndrome
Beckwith–Wiedemann syndrome
Langer–Giedion syndrome
Wiedemann–Steiner syndrome
Smith–Magenis syndrome
Wiedemann–Rautenstrauch syndrome