title: Primary diagnosis of pulmonary echinococcosis by the cytologic technique.
mesh_terms: D001999:Bronchoscopy; D003581:Cytodiagnosis; D004445:Echinococcosis, Pulmonary / Q000175:diagnosis*; D004446:Echinococcus / Q000302:isolation & purification; D006801:Humans; D008297:Male; D008875:Middle Aged; D013183:Sputum / Q000166:cytology; D013194:Staining and Labeling