Characteristics | |
---|---|
Total (No.) | 25 |
Female | 11 |
Male | 14 |
HGPS mutation types | |
Classic by phenotype and genotype | 18 |
Classic by phenotype only | 4 |
Nonclassic by phenotype and genotype | 3a |
Total No. of scans | 98 |
Mean age at time of scan | 6.5 years (range, birth–14.1 yr) |
Anthropomorphic datab | |
Height-age | <3rd percentile |
Height-age/chronologic age (mean) | 0.5 |
Head circumference (mean) | 56th percentile |
Types of neuroimaging (No.) | 98 |
CT head | 43 |
MR imaging head | 51 |
Skull radiographs | 4 |