Imprint cytology in laryngeal and pharyngeal tumours

Objective: The aim of this study was to evaluate the role of cytology in providing a reliable diagnosis upon which the clinician can base further investigative or treatment strategies in patients with laryngeal and pharyngeal tumours. Methods: Imprint cytology diagnoses from 174 patients were correlated with the histological result of a corresponding biopsy. Results: We found that the imprint cytology proved to be a useful, quick and reliable method with complete diagnostic accuracy, sensitivity, specificity, positive predictive value and negative predictive values of 97%, 96%, 100%, 100% and 92% respectively. Conclusion: Imprint cytology allows diagnostic statements in a shorter time than is possible with histological sections and proves a useful adjunct in evaluating laryngeal and pharyngeal lesions. The validity of the method depends on the care with which the specimen is sampled and on the experience of the investigator.