1. The role of rapid on site evaluation on touch imprint cytology and brushing during conventional bronchoscopy
- Author
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Stefania Tommasi, Michele Siciliano, Anna Scattone, Luigi Cisternino, Laura Schirosi, Fabio Mele, Francesco Alfredo Zito, Antonietta Lozupone, Anita Mangia, Maria Antonietta Botticella, Maria Irene Pastena, Simona De Summa, and Rosa Sozio
- Subjects
Adult ,Male ,medicine.medical_specialty ,Histology ,Concordance ,Cytodiagnosis ,Cytological Techniques ,030209 endocrinology & metabolism ,Touch imprint cytology ,Site evaluation ,medicine.disease_cause ,Pathology and Forensic Medicine ,03 medical and health sciences ,0302 clinical medicine ,Bronchoscopy ,Carcinoma, Non-Small-Cell Lung ,medicine ,Biomarkers, Tumor ,Humans ,Lung cancer ,Aged ,Aged, 80 and over ,medicine.diagnostic_test ,business.industry ,Bronchial Neoplasms ,High-Throughput Nucleotide Sequencing ,General Medicine ,Sequence Analysis, DNA ,Middle Aged ,medicine.disease ,Immunohistochemistry ,Molecular analysis ,Fiber optic bronchoscopy ,030220 oncology & carcinogenesis ,Female ,Radiology ,KRAS ,business - Abstract
Background The increase in immunohistochemical and molecular predictive tests in lung cancer requires new strategies for managing small samples taken during bronchoscopic procedures. The value of Rapid On Site Evaluation (ROSE) during conventional bronchoscopic procedures on endobronchial neoplasms in optimizing small biopsies and cytologlogical tissue specimens for diagnostic testing, and ancillary studies was evaluated. Method ROSE on touch imprint cytology (TIC) and brushing was performed on 690 consecutive cases of patients undergoing biopsies, using fiber optic bronchoscopy. Immunohistochemical assay for PD-L1, ALK, and ROS1 and molecular testing, via next generation technique for EGFR, KRAS, and BRAF, were performed. Results The concordance between ROSE and final diagnoses was almost perfect for brushing (sensitivity: 0.84; specificity: 0.96), and less so for touch preparations (sensitivity: 0.77; specificity: 0.89). Immunohistochemical assay for PD-L1 was evaluated on 256 bioptic cases with only six unsuitable samples. Material available for immunohistochemistry for ALK was sufficient in 151 biopsies with no inadequate cases. ROS1 was evaluated in 132 biopsies, with only two unsuitable samples. Molecular analysis was performed on 128 biopsies, 29 TIC, and 17 brushing. Out of these, only ten were considered to be unsuitable. Conclusions ROSE is an effective procedure for monitoring the quality and quantity of material taken during conventional bronchoscopic procedures for evaluating the suitability of small samples that must undergo immunohistochemical and molecular assay.
- Published
- 2021