SEARCH Articles Figures Tables Benign cephalic histiocytosis Cell Histiocytosis Differential Langerhans’ cell histiocytosis Histiocytosis PLCH) Langerhans cell histiocytosis Langerhans’ cell histiocytosis diagnosis Langerhans’ cell histiocytosis pulmonary function Pulmonary Langerhans cell histiocytosis Pulmonary Langerhans cell histiocytosis PLCH) Pulmonary histiocytosis