الفهرس 
INTRODUCTION AND Aim Of The WorkOnly 14 pages are availabe for public view
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Abstract
This study included 73 patients with laryngeal and hypopharyngeal lesions. The patients presented with hoarseness of voice, dysphagia, stridor and painless swelling in the neck. These patients were subjected to general and local examination of the neck after history taking. Direct laryngoscopy was done for 58 patients, CT scan for 47 patients and MRI for 26 patients The results of our study were classified into malignant and benign groups. The malignant group included 35 cases with laryngeal carcinoma, 17 cases with hypopharyngeal carcinoma and 6 cases after treatment of cancer of the larynx. The benign group included 15 cases: One case was laryngeal cleft, 2 cases were o granulomatous infiltration of larynx, 1 case was cartilagenous tumor of cricoid cartilage, 4 cases were laryngocele and 7 cases were after trauma. CT and MRI would identify changes in tissu~ density, fascial planes, distortion of anatomical landmarks, invasion of deep laryngeal spaces, vocal cord fixation, cartilagenous invasion, metastatic lymph node involvement and extralaryngeal extension. CT and MRI are equal in detecting invasion of aryepiglottic fold and epiglottis, preepiglottic and para laryngeal spaces, and subglottic extension, but CT scan in superior to MRI in detection of lymph node central necrosis and extranodal spread.