| PWS | Control |  | ||||
---|---|---|---|---|---|---|---|
 | mUPD | DEL |  | ||||
 | Mean | SD | Mean | SD | Mean | SD | p valuea |
Hypothalamus | 5395.0 | 1109.5 | 5542.2 | 1101.6 | 5657.3 | 1349.3 | .82 |
Mammillary bodies | 922.8 | 177.5 | 788.8 | 85.7 | 970.1 | 168.8 | .33 |
Pituitary gland | 1279.4 | 501.4 | 1267.3 | 394.0 | 2674.6 | 1057.8 | <.0001 |
Posterior pituitary bright spot | 13/13 | Â | 14/14 | Â | 28/28 | Â | Â |
Pituitary stalk length (mm) | 7.9 | 1.9 | 7.07 | 2.5 | 5.6 | 2.0 | .041 |
Interrupted stalk | 0/13 | Â | 0/14 | Â | 0/28 | Â | Â |