Table 2.
Clinical features | Description |
---|---|
Macrocephaly | Head circumference increases above 97th percentile until age 10 to 18 months and then maintains its centile |
Facies features | Frontal bossing, coarse facial features, and facial milia in about 60% of individuals with PTCH1 mutation; more subtle in individuals with SUFU mutation |
Jaw keratocysts | Can arise early as from five years of age, with a peak in the teenage years; usually present with painless swellings and if untreated can lead to tooth disruption and jaw fracture |
Other congenital malformations | Cleft lip/palate; polydactyly; skeletal anomalies (bifid ribs, wedge-shaped vertebrae, short 4th metacarpal); various eye anomalies (strabismus, hypertelorism, cataract, orbital cyst, microphthalmia, retinal epithelium alterations) |
Skin anomalies | Pits in the palm of the hand |
Other anomalies | * Ectopic calcifications, frequently in the falx cerebri in more than 90% of patients by age 20 years |