Juvenile xanthogranuloma (JXG) is a rare and usually benign disease occurri
ng in early childhood. It causes skin and deep seated lesions, notably in t
he eye. We report a case of JXG in the iris of a 9-month-old infant. Examin
ation under general anesthesia revealed megalocornea, iris xanthogranuloma
occupying the entire anterior chamber and high intraocular pressure. Skin l
esions on the left lid and on the back were also found. Ocular hypertension
resisted medical and surgical treatment. Cyclodestruction was necessary.
The incidence of JXG is low (0.4%). The iris is the most frequently affecte
d ocular tissue. Early diagnosis is necessary to avoid complications. Moreo
ver, JXG can be associated in rare cases with neurofibromatosis or leukemia
which must be systematically searched for.