Adult Onset Langerhans' Cell Histiocytosis: A Case Report

Langerhans' cell histiocytosis(LCH) is a group of diseases of unknown cause resulting from abnormal proliferation of bone marrow-originated dendritic cells called histiocytes. The incidence is between 0.5-5.4 per million. More common in childhood, it is extremely rare in adults. Cases of adult-onset LCH are presented as case reports in literature. Here, we present the case of a 66- year-old female patient with both skin and pulmonary involvement. (Marmara Medical Journal 2012;25:96-9)