LARYNX IMAGING LESIONS OF THE LARYNX 1. LARYNGEOCELE

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Presentation transcript:

LARYNX IMAGING LESIONS OF THE LARYNX 1. LARYNGEOCELE SUMMARY OF LARYNX IMAGING LARYNX IMAGING SCAN PROTOCOL MRI CT Scout Axial "Both Hips" Lateral Axials T1 & T2 & PD Position Supine – Hyperextended neck  Scan Tounge base : Trachea Sagital T1 o T2 for disased Windows = Soft Tissue "main" = Bone Cartilage Invasion Slice Thickness 5 mm 2 – 3 mm FOV 20 cm MANDATORY FAT SUPREES Pre & post Contrast LESIONS OF THE LARYNX 1. LARYNGEOCELE نويلبان بيبط – ىرلا .د مسا يلع Voice abuse  Dilated laryngeal sacule Contains :air – fluid or air/fluid Three Types : Internal - External - Maixed 15 % + Cancer 40% 16% 44% Cyst Inside Larynx Outpouch through thyro-hyoid membrane Cyst on both sides of thyroid membrane By A.M.Abodahab – Ass. Lecturer of Radiology - Sohag University

2. CANCER LARYNX SUMMARY OF LARYNX IMAGING Air fluid level in External & Mixed 2. CANCER LARYNX Mostly Squamous cell carcinoma Incidence Lymphatic spread Supra-glotic 70 : 60 % 30 % Glottic 25 : 35% 1% Sub Glottic 5 % Transglottic Involve 3 levels Role of Imaging : CT & MRI Assess site & extension of Mass In supraglottic lesions : Extension to pre epiglottic space & Para Glottic Space & Ant. Commisure By A.M.Abodahab – Ass. Lecturer of Radiology - Sohag University

SUMMARY OF LARYNX IMAGING Lt Laryngeal mass invading Lt ary-epiglottic fold By A.M.Abodahab – Ass. Lecturer of Radiology - Sohag University

3. OTHERS HAMANGIOMA POLYP SUMMARY OF LARYNX IMAGING Voice Abuse By A.M.Abodahab – Ass. Lecturer of Radiology - Sohag University

SUMMARY OF LARYNX IMAGING By A.M.Abodahab – Ass. Lecturer of Radiology - Sohag University

SUMMARY OF LARYNX IMAGING By A.M.Abodahab – Ass. Lecturer of Radiology - Sohag University