Pulmonary Langerhans Cell Histiocytosis and Other Pulmonary Histiocytic Diseases A Review

most common and best known pulmonary histocytic le-sion; however, the realm of pulmonary histiocytic lesions also includes an assortment of uncommon diseases that may exhibit pulmonary involvement. Objective.—To review pulmonary Langerhans cell histio-cytosis and other pulmonary histiocytoses to better ensure correct diagnosis and optimal assessment of prognosis and treatment. Data Sources.—Literature review and primary material from the author’s institution. Conclusions.—This review discusses the most common pulmonary histocytosis, pulmonary Langerhans cell histio-cytosis, and also reviews the uncommon pulmonary histio-cytic lesions, which are distinct from pulmonary Langer-hans cell histiocytosis