Diagnostic efficacy and molecular testing by combined fine-needle aspiration and core needle biopsy in patients with a lung nodule

Lan Chen, He Jing, Yun Gong, Alda L. Tam, John Stewart, Gregg Staerkel, Ming Guo

Research output: Contribution to journalArticle

Abstract

Background: Combined image-guided fine-needle aspiration biopsy (FNA) and core needle biopsy (CNB) has become the standard of care for diagnosis and/or molecular testing for patients with a solitary lung nodule at our institution. Our purpose was to evaluate the efficacy of this practice. Methods: We identified patients who underwent combined lung FNA/CNB during 2012 at our institution. A total of 667 patients who underwent 682 combined lung FNA/CNB procedures were included in the study, including 355 men and 312 women. Combined lung FNA/CNB procedures were performed by a radiologist. The adequacy of FNA specimens was assessed immediately by a cytopathologist. The FNA and CNB specimens were interpreted separately by a cytopathologist and a surgical pathologist, respectively. The diagnostic accuracy of the combined technique was determined. Results: The rate of diagnostic consistency between FNA and CNB was 83.4%, and the rate of diagnostic accuracy for malignancy was 98.5% for combined FNA/CNB. Combined FNA/CNB showed a high diagnostic efficacy for malignancy (sensitivity, 97.6%; specificity, 100%). Combined FNA/CNB had a lower false-negative rate for malignancy (2.2%) than either FNA (7.2%) or CNB (6.2%) alone. FNA contributed to 10.3% of molecular analyses as a complementary tissue source. Conclusions: Combined lung FNA/CNB has high diagnostic efficacy for malignancy and a lower false-negative rate than either procedure alone. FNA was a valuable complement to CNB for molecular testing, potentially reducing patient inconvenience and morbidity associated with repeated lung needle biopsy.

Original languageEnglish (US)
Pages (from-to)201-206
Number of pages6
JournalCancer Cytopathology
Volume128
Issue number3
DOIs
StatePublished - Mar 1 2020

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Keywords

  • core needle biopsy
  • fine-needle aspiration
  • FNA
  • lung carcinoma
  • molecular testing

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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