Fig. 3

Pituitary gland abnormalities in PWS. Left, patient with PWS; right, healthy control; both are of the same age and gender. Note the present posterior bright spot in both the left and right images, within the red circle. The contours of the pituitary gland are marked with green line. Horizontal blue lines indicate the approximate location of the superior pituitary border and infundibular recess for the measurement of the pituitary stalk length. Please note the boat-like cavity around the place where pituitary stalk roots itself into the gland and a long pituitary stalk in PWS