Evaluation of the diagnostic value of a Modified Liquid-Based Cytology using OralCDx Brush in early detection of oral potentially malignant lesions and oral cancer

OBJECTIVES: To determine diagnostic value of modified Liquid Based Brush Biopsy technique. STUDY DESIGN: 26 oral premalignant and malignant lesions in 25 patients (12 females; 54.23+/-19.77 years and 13 males; 53.77+/-15.43 years) underwent Modified (Liquid Based) Brush Biopsy and scalpel biopsy simultaneously from the same area. RESULTS: There were 16 positive and 10 negative brush biopsy results, with no inadequate readings. Histological findings were compatible with oral leukoplakia (n=5) with dysplasia, Oral lichen planus and lichenoid reaction (n=7) (with or without dysplasia) oral squamous cell carcinoma (n=11),verrucous carcinoma (n=1) and granular cell tumors (n=2). Sensitivity, specificity, positive predictive value, negative predictive value, positive diagnostic likelihood ratio (LR+) and negative diagnostic likelihood ratio (LR-) were 88.8%, 100%, 100%, 80%, infinity and 0.11 respectively (no false positive results). CONCLUSION: It is the first attempt to do LBC with a specialized oral brush. Our results show that modified technique is a useful tool for screening of oral premalignant and malignant lesions.