A mother, son, and daughter are presented, in whom serial photographs
document an insidious and late onset of exorbitism and midfacial retru
sion consistent with a diagnosis of familial nonsyndromic craniosynost
osis. Papilledema was found in the 4.5-year-old daughter because of in
creased intracranial pressure secondary to a reduction in cranial vaul
t size, whereas optic nerve sheath swelling on CT scan was found in th
e son.