Bilateral proptosis in a child with vitamin C deficiency.

Scurvy is one of the oldest diseases known to mankind, caused by vitamin C deficiency. Nowadays it exists primarily in certain vulnerable populations such as patients with neurodevelopmental disabilities. Proptosis due to orbital haemorrhage is a rare complication of scurvy. Here we describe a case of diaplegic cerebral palsy presented with sudden onset of bilateral proptosis and swollen and tender knee joints. Subsequent computed tomography of the orbit revealed hematoma in the superior aspect of both orbits in the extraconal position. X-ray of the knee joints revealed bony changes consistent with scurvy. After 6 weeks of treatment with vitamin C orally, the proptosis and the bony changes returned to normal. Although scurvy is a rare disease in the general pediatric population, it still exists in certain vulnerable populations like neurologically disabled ones, and this uncommon cause for proptosis should be considered in such children.