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Multiplex Immunohistochemistry Staining for Paraffin-embedded Lung Cancer Tissue
Published on: November 21, 2023
Fluorescence in situ hybridization testing algorithm improves lung cancer detection in bronchial brushing specimens
Jesse S Voss1, Benjamin R Kipp, Kevin C Halling
1Department of Laboratory Medicine and Pathology, Mayo Clinic and Foundation, Rochester, Minnesota, USA.
American Journal of Respiratory and Critical Care Medicine
|December 17, 2009
Summary
Adding fluorescence in situ hybridization (FISH) to routine cytology significantly improves lung cancer detection, particularly for peripheral nodules. This combined approach enhances diagnostic accuracy for pulmonary lesions.
Area of Science:
- Pulmonology
- Oncology
- Cytopathology
Background:
- Cytology from bronchoscopy is standard for diagnosing lung cancer.
- Current cytology methods have limited sensitivity, especially for small peripheral pulmonary lesions.
Purpose of the Study:
- To evaluate the performance of a diagnostic algorithm combining cytology and fluorescence in situ hybridization (FISH) in clinical practice.
- To assess the utility of FISH in improving lung cancer detection rates.
Main Methods:
- Bronchial brushing specimens were collected from 343 patients with indeterminate pulmonary lesions.
- Routine cytology was performed, followed by FISH analysis on non-diagnostic specimens.
- Malignancy was confirmed by pathology or clinical/radiographic evidence.
Main Results:
- Routine cytology sensitivity was 41% for central and 20% for peripheral lesions.
- FISH detected an additional 32% of lung cancers missed by cytology alone.
- FISH demonstrated higher diagnostic value for peripheral nodules, especially those <2 cm.
Conclusions:
- Fluorescence in situ hybridization (FISH) testing substantially enhances lung cancer detection compared to cytology alone.
- FISH is particularly beneficial for diagnosing peripheral pulmonary nodules.
- The combined algorithm improves diagnostic yield for lung cancer.
