Table 4—

Diagnostic yield of fine-needle aspiration biopsy (FNAB) and cutting-needle biopsy (CNB) in paired samples

ProceduresFNAB and CNBFNAB aloneCNB aloneChi-squared#
Total123109 (89)101 (82)94 (76)NS
Neoplastic lesions109104 (95)99 (91)89 (82)0.050
Lung carcinoma9491 (97)89 (95)76 (81)0.006
 Small cell lung carcinoma88 (100)7 (88)7 (88)NS
 Nonsmall cell lung carcinoma8683 (97)82 (95)69 (80)0.004
Neoplastic other than lung carcinoma1513 (87)10 (67)13 (87)NS
 Sarcoma66 (100)4 (67)6 (100)ND
 Lymphoma42 (50)2 (50)2 (50)ND
 Mesothelioma22 (100)1 (50)2 (100)ND
 Other33 (100)3 (100)3 (100)ND
Benign lesions75 (71)2 (29)5 (71)NS
 Fibrosis42 (50)0 (0)2 (50)ND
 Tuberculosis, lipoma22 (100)2 (100)2 (100)ND
 Wegener's granulomatosis11 (100)0 (0)1 (100)ND
All other than lung carcinoma2218 (82)12 (55)18 (82)0.056
Undiagnosed7
  • Data are present as n and n (%), unless otherwise stated. ND: not done. NS: nonsignificant. #: Chi-squared, FNAB versus CNB; p-values ≤0.1 are displayed, others are NS; : Thymoma, carcinoma with unknown primary, carcinoid tumour (diagnosed as adenocarcinoma on FNAB).