title: Lung carcinosarcoma as a rare biphasic sarcomatoid carcinoma: a case report.
abstract: BACKGROUND
  A fit, 57-year-old man admitted with chest pain and haemoptysis turned out to have a primary tumour in the left lung.
  
  
  METHODS
  In this 57-year-old Caucasian man, the diagnosis followed a computed tomography scan and histopathological evidence gained post-resection. The biopsy showed a uniform, spindle shape with focal pleomorphism which was suggestive of lung carcinosarcoma.
  
  
  CONCLUSIONS
  The authors report this case in literature and discuss how a rare malignant tumour can be found in those presenting with trivial chest symptoms.
authors.affiliation: Department of Rheumatology and General Internal Medicine, Brighton and Sussex University Hospital NHS Trust, UK. ksanyal01@doctors.org.uk
authors.forename: Kaushik
authors.initials: K
authors.lastname: Sanyal
authors.forename: Kanagasabesan
authors.initials: K
authors.lastname: Sabanathan