An Unusual Orbital Bone Lesion

ALG Looi, CT Choo, WT Poh, A Hong
Correspondence: Dr Audrey Looi

ABSTRACT
A case of Langerhans cell histiocytosis involving the left orbital ridge in an 11-year-old girl is reported. The clinical presentation, radiologic findings and histopathological features as well as diagnostic criteria for Langerhans cell histiocytosis are reviewed.

Keywords: Langerhans cell histiocytosis, orbital involvement, S-100 protein antibody, OKT6 antibody, Birbeck granules
Singapore Med J 2001; 42(1): 38-40