Multiple eyelid defects in cutaneous Langerhans cell histiocytosis.

Langerhans cell histiocytosis is a disorder characterized by the proliferation of histiocytes of the mononuclear phagocyte system. Cutaneous Langerhans cell histiocytosis can develop as a solitary lesion or more frequently as part of a multisystem disease. This report describes a case of cutaneous Langerhans cell histiocytosis affecting the eyelids, resulting in a coloboma-like defect. The clinical features and management are discussed.