title: [Diagnostic difficulties in neoplasms of mesenchymal origin].
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D008654:Mesothelioma / Q000175:diagnosis / Q000473:pathology; D010997:Pleural Neoplasms / Q000175:diagnosis*
vernacular_title: Trudności w rozpoznawaniu nowotworów pochodzenia mezenchymalnego.