Bardet–Biedl syndrome the genitilia are hidden - if they are below 2 SD, then it confirms the diagnosis. sneaky: Prader Willi, Frohlich, Albright's hereditary osteodystrophy and Leptin resistance/deficiency syndromes don't have polydactyly as a defining feature and are thus ruled out. Cushingoid has characteristic centraal obesity - also ruled out. But hypothroidism needs to be ruled out as it could be compounding to the patient's woes.
