title: Benign histiocytic tumor of lung. A light- and electron-microscopic study.
abstract: We describe an unusual benign pulmonary neoplasm which was composed entirely of histiocytes and a few chronic inflammatory cells and which posed difficult diagnostic problems. The differential diagnosis is discussed, and the usefulness of electron microscopy in interpreting unusual pulmonary tumors is emphasized.
mesh_terms: D003937:Diagnosis, Differential; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D008297:Male; D008875:Middle Aged