title: [Diagnosis and treatment of primary pulmonary rare malignant tumors].
abstract: BACKGROUND
  To explore the clinical features, diagnosis and treatment of primary pulmonary rare malignant tumors.
  
  
  METHODS
  Forty-nine patients with primary pulmonary rare malignant tumors were retrospectively analysed about their clinicopathological characteristics and X-ray signs, as well as methods of diagnosis and treatment.
  
  
  RESULTS
  Among 49 patients, which was 0. 70% ( 41/ 5 872) of all pulmonary tumors resected in the same period, 1 case was diagnosed by bronchoscope biopsy, 2 cases by lymph node biopsy, and 4 cases by pulmonary puncture and biopsy. Another 41 cases ( 83. 6%, 41/ 49) underwent surgical operation and were pathologically diagnosed after operation.
  
  
  CONCLUSIONS
  Surgical operation is main measure in the diagnosis and treatment of primary pulmonary rare malignant tumors.
authors.affiliation: Department of Medical Oncology , Beijing Thoracic Tumor & Tuberculosis Hospital, Beijing 101149, P . R. China.
authors.forename: L
authors.initials: L
authors.lastname: Xu
authors.forename: S
authors.initials: S
authors.lastname: Liu
authors.forename: Y
authors.initials: Y
authors.lastname: Zhu