title: Solitary fibrous tumor of the pleura - analysis of 18 cases.
abstract: BACKGROUND
  Solitary fibrous tumors of the pleura (SFTP) are primary tumors arising from mesenchymal cells. Immunohistochemical studies have demonstrated that the origin of these tumors is mesenchymal rather than mesothelial. The aim of this study is to present our experience with diagnosing and treating patients with SFTP.
  
  
  METHODS
  We analyzed 18 patients treated at the Department of Thoracic Surgery of the Medical University of Lodz. The patients' medical histories and the results of postoperative histopathological investigation of the tumors were analyzed. Postoperative histopathological samples were evaluated with regard to the current criteria of malignancy.
  
  
  RESULTS
  In 17 patients, the tumors were surgically removed. Benign and small lesions (less than 3 cm in size) were removed by video-assisted thoracoscopic surgery (VATS). In 5 cases, malignant tumors were found in the postoperative material.
  
  
  CONCLUSIONS
  Solitary fibrous tumors of the pleura is a tumor with frequently asymptomatic clinical course. Treatment consists in resection which includes the adjacent structures, especially if the tumor is malignant.
authors.affiliation: Department of Thoracic Surgery and Respiratory Rehabilitation, Medical University of Lodz, Poland.
authors.forename: Bartosz
authors.initials: B
authors.lastname: Cieślik-Wolski
authors.affiliation: Department of Thoracic Surgery and Respiratory Rehabilitation, Medical University of Lodz, Poland.
authors.forename: Łukasz
authors.initials: Ł
authors.lastname: Pryt
authors.affiliation: Department of Thoracic Surgery and Respiratory Rehabilitation, Medical University of Lodz, Poland.
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Szlachcińska
authors.affiliation: Department of Pathology, Copernicus Memorial Hospital in Lodz, Poland.
authors.forename: Grażyna
authors.initials: G
authors.lastname: Walczak-Pasz
authors.affiliation: Department of Pathology, Copernicus Memorial Hospital in Lodz, Poland.
authors.forename: Dorota
authors.initials: D
authors.lastname: Jesionek-Kupnicka
authors.affiliation: Department of Thoracic Surgery and Respiratory Rehabilitation, Medical University of Lodz, Poland.
authors.forename: Józef
authors.initials: J
authors.lastname: Kozak
keywords: VATS; pleural tumors; solitary fibrous tumor