title: [Diagnostic problems and incidence distribution in primary lung tumors].
abstract: Reasons for discrepancies in histopathologic findings in an international study are explored in relation to the author's own analysis of 4,485 operative or post mortem specimens. A frequency distribution of these tumours is presented according to the WHO-classification system.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology; D018288:Carcinoma, Small Cell / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D003430:Cross-Sectional Studies; D003937:Diagnosis, Differential; D006801:Humans; D008168:Lung / Q000473:pathology; D008175:Lung Neoplasms / Q000145:classification / Q000473:pathology*
vernacular_title: Diagnostische Probleme und Häufigkeitsverteilungen bei den primären Lungentumoren.