Table 3

Prevalence of K-ras codon 12 mutations in small pulmonary lesions by diagnosis

Detection of k-ras mutation in lung cancer was significantly higher than that in nonmalignancy (P = 0.012).
No. of cases
DiagnosisMutation (%)Normal (%)
Lung cancera15 (75)5 (25)
Nonmalignancy4b (31)9 (69)
  • a Adenocarcinoma (20).

  • b Focal fibrosis (3), pneumonia (1).