Please click to enlarge.
Note what signs you see.
I (W. Wertelecki, M.D.) see a prominent forehead. This should prompt a clinician to measure the head size and examine the rest of the sceletal proportions. To appreciate this example, please see the additional images.
CREDIT: The images and clinical profile are mostly adapted from “Atlas of Mental Retardation Syndromes” by U.S. Department of Health, Education, and Welfare. 1968 (0-310-072 U.S. Government Printing Office), edited by S. S. Gellis, M.D. and M. Finegold, M.D.