title: Cytological and histological diagnosis of lung cancer in Sardinia and Italy in the 1990s.
abstract: BACKGROUND
  Up to 30-50% of all lung cancer cases remain without cyto-histological characterisation. The aim of our study was to evaluate retrospectively the proportion of histological and/or cytological diagnosis in patients with lung cancer in Sardinia.
  
  
  METHODS
  Data was gathered by consulting the hospital registers and case notes of individual patients released from hospital with a diagnosis of Lung Cancer at all medical centres throughout Sardinia. In gathering patients' data, we focused our attention on cytological and histological procedures through which allowed the lung cancer was diagnosed. Cancer Registries data was utilised to compare our data with national and Sassari province data.
  
  
  RESULTS
  From 1991 to 1996 there was a total of 3146 lung cancer patients registered in Sardinia. 1902 patients (60.5%) had a histological diagnosis, 142 patients (4.5%) a cytological diagnosis while in 1102 patients (35%) the diagnosis was performed without any pathological validation.
  
  
  CONCLUSIONS
  Our study has shown that lung cancer diagnosis is supported by pathological verification in 65% of cases while in remaining 35% of patients the diagnosis is based only on clinical and radiological reports. In Italy data from Cancer Registries report the percentage of cytohistological diagnosis to be 70% with the percentage of cytological diagnosis being higher than in Sardinia.
authors.affiliation: Department of Respiratory Disease, University of Sassari, Italy. pirina@uniss.it
authors.forename: P
authors.initials: P
authors.lastname: Pirina
authors.forename: M
authors.initials: M
authors.lastname: Budroni
authors.forename: S
authors.initials: S
authors.lastname: Esposito
authors.forename: S
authors.initials: S
authors.lastname: Ostera
authors.forename: M F
authors.initials: MF
authors.lastname: Polo
authors.forename: L
authors.initials: L
authors.lastname: Santoru
authors.forename: G
authors.initials: G
authors.lastname: Madeddu
authors.forename: A G
authors.initials: AG
authors.lastname: Fois
authors.forename: G C
authors.initials: GC
authors.lastname: Ginesu
authors.forename: G
authors.initials: G
authors.lastname: Padua
authors.forename: F
authors.initials: F
authors.lastname: Tanda
authors.forename: F
authors.initials: F
authors.lastname: Ginesu
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D007558:Italy / Q000453:epidemiology; D008175:Lung Neoplasms / Q000453:epidemiology* / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D017678:Sex Distribution