Evaluation of Dynamic CT Scans and Analyzing Its Efficacy Accuracy in Staging of Laryngeal CA: A Prospective Analysis of 30 Patients and Review of Literature

Laryngeal and hypopharyngeal cancer is the most common cancer in the head and neck. It is the most commonly reported human malignancy, with more than 100,000 cases reported annually worldwide. Thus, exact staging of the tumor is of utmost importance in the decision making of the management of these patients. CT can directly evaluate penetration of tumor into the laryngeal soft tissues and cartilages; whereas laryngoscopy and contrast laryngography can only infer deepseated abnormalities from changes in surface contour of the laryngeal cavity. The main aims of our study were: (1) To assess whether dynamic CT scans increase the diagnostic efficacy for laryngeal and hypopharyngeal cancers and its extent in surrounding structures. (2) To assess the importance of phonation CT scans in evaluation and diagnosis of vocal cord paralysis/fixity and involvement of subglottic region and pre epiglottic space.