Fig. (1).

(A). Frontal and profile views of a 16 month old female with Prader-Willi syndrome due to maternal disomy 15 and not treated with growth hormone. Note the typical facial features of a narrow forehead, short-upturned nose and downturned corners of the mouth. The gastrostomy site is noted along with central obesity.

(B). Facial, profile and hand views of an 18 year old female with Prader-Willi syndrome due to the typical 15q11-q13 deletion and not treated with growth hormone. Note the almond-shaped eyes, a narrow forehead, thin upper lip, hypopigmentation, central obesity and small hands.