Table 1

Clinical features observed in Prader-Willi syndrome and five cases of interstitial deletion of chromosome 6q associated with Prader-Willi-like phenotype

Prader-Willi syndromePatients with interstitial 6q deletion and a Prader-Willi-like phenotype
Hypotonia+4/4
Feeding problems in infancy+3/3
Obesity+5/5
Facial dysmorphismMildModerate
Hypogonadism+4/5
Developmental delayMildSevere
Hyperphagia+2/5
Short extremities+5/5
Cardiac defects-2/5
CNS abnormalities-3/5