title: Pulmonary Langerhans cell histiocytosis and other pulmonary histiocytic diseases: a review.
abstract: BACKGROUND
  Pulmonary Langerhans cell histiocytosis is the most common and best known pulmonary histiocytic lesion; 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 histiocytosis and other pulmonary histiocytoses to better ensure correct diagnosis and optimal assessment of prognosis and treatment.
  
  
  METHODS
  Literature review and primary material from the author's institution.
  
  
  CONCLUSIONS
  This review discusses the most common pulmonary histiocytosis, pulmonary Langerhans cell histiocytosis, and also reviews the uncommon pulmonary histiocytic lesions, which are distinct from pulmonary Langerhans cell histiocytosis.
authors.affiliation: Department of Pathology, The University of Texas Health Science Center at Tyler, Tyler, TX 75708, USA. timothy.allen@uthct.edu
authors.forename: Timothy Craig
authors.initials: TC
authors.lastname: Allen
mesh_terms: D003937:Diagnosis, Differential; D006646:Histiocytosis, Langerhans-Cell / Q000473:pathology* / Q000628:therapy; D006801:Humans; D008171:Lung Diseases / Q000473:pathology* / Q000628:therapy