title: Primary pulmonary leiomyosarcoma with invasion of the pulmonary vein-A case report.
abstract: BACKGROUND
  Primary pulmonary leiomyosacromas are a subset of the rare sarcomatous lung neoplasms, found to be less than 0.5% of the organ's primary malignant tumors (Attanoos et al., 1996).
  
  
  METHODS
  We describe here a case of a 69-year-old woman who presented with heart palpitations, incidentally found to have a large lung mass abutting the left inferior pulmonary veins. Challenging tissue diagnosis led to invasive alternatives; attempted full neoplastic resection and pneumonectomy.
  
  
  CONCLUSIONS
  The mainstay of treatment for these tumors is complete surgical resection. Chemotherapy and radiation can be helpful adjuncts as well.
  
  
  CONCLUSIONS
  This case presents a unique invasion pattern of a primary leiomyosarcoma of the lung, our diagnostic process, and surgical intervention.
authors.affiliation: Medical College of Wisconsin, Division of Cardiothoracic Surgery, 9200 W. Wisconsin Avenue, Milwaukee, WI 53226, United States. Electronic address: Ecolwell@mcw.edu.
authors.forename: Elizabeth M
authors.initials: EM
authors.lastname: Colwell
authors.affiliation: Medical College of Wisconsin, Division of Cardiothoracic Surgery, 9200 W. Wisconsin Avenue, Milwaukee, WI 53226, United States.
authors.forename: Mohamed F
authors.initials: MF
authors.lastname: Algahim
authors.affiliation: Department of Pathology, 9200 W. Wisconsin Avenue, Milwaukee, WI 53226, United States.
authors.forename: Arjun
authors.initials: A
authors.lastname: Rao
authors.affiliation: Medical College of Wisconsin, Division of Cardiothoracic Surgery, 9200 W. Wisconsin Avenue, Milwaukee, WI 53226, United States.
authors.forename: Mario G
authors.initials: MG
authors.lastname: Gasparri
keywords: Leiomyosarcoma; Lung cancer; Surgery