frontal bossing same thing only a fact and not a theory. Bone density causes things to become squished, dental problems, squished spinal ( narrowing of the interpediculate distance of the caudal spine), the whole body becomes deformed due to the squishing of the bone density.

Late closure of anterior fontanel, structural brain malformations including ventriculomegaly, cardiac defects, seizures, hypotonia, hearing loss, and vision problems are noted in most individuals with this deletion. Skeletal and genitourinary abnormalities are reported frequently as well. Developmental delay, poor to absent speech and intellectual disability is present in every individual with variable severity (97–99). Recently, a few cases with PWS-like features including hypotonia, obesity, and cognitive delays have been associated with the 1p36 deletion (100,101). More than 10 cases of 1p36 deletion syndrome have been diagnosed prenatally. The most common prenatal findings are ventriculomegaly, midface hypoplasia and heart defects (102,103).
[link to www.sciencedirect.com (secure)]




I'd say my head is average without any distinguishing features. The facts on a physically depressed head is just that, depressing all around and dull is just a theory to describe your feelings.