Classification of Non-Neoplastic Lesions of the Larynx and Trachea ( Box 15-1 ) Box 15-1 Classification of Laryngeal and Tracheal Non-Neoplastic Lesions Vocal cord nodules/polyps Laryngocele and laryngeal cysts Contact ulcer Amyloidosis Subglottic stenosis Teflon granuloma Tracheopathia osteoplastica Infectious diseases…
Larynx Embryology Epithelium and glands of the larynx arise from the endoderm lining the laryngotracheal groove. Supraglottic larynx arises from the third and fourth branchial arches. Glottis and subglottic larynx arise from the sixth branchial arch. Cartilage, muscle, and other…
Classification of Neoplasms of the Neck Box 13-1 Classification of Neoplastic Lesions of the Neck Benign Mesenchymal/Neuroectodermal Fibromatosis Nodular fasciitis Paraganglioma Lipomas Nerve sheath tumors Rhabdomyoma Vascular neoplasms (e.g., angiofibroma, hemangioma, lymphangioma) Lymphatic malformation (lymphangiomas) Others Malignant Hematolymphoid Malignant Neoplasms…
Classification of Non-Neoplastic Lesions of the Neck ( Box 12-1 ) Box 12-1 Classification of Non-neoplastic Lesions of the Neck Developmental Cystic Anomalies Branchial cleft anomalies Thyroglossal duct cyst Cervical thymic cyst Bronchogenic cyst Dermoid cyst Others Infectious and Related…
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Classification of Pharyngeal Neoplasms ( Box 10-1 ) General Considerations Similar to tumors of other upper aerodigestive tract sites, the most common tumors of the pharynx are of epithelial origin: The most common benign neoplasm is a (squamous) papilloma. The…
Classification of Non-Neoplastic Lesions of the Pharynx ( Box 9-1 ) Box 9-1 Classification of Non-Neoplastic Lesions of the Pharynx, Including Naso-, Oro-, and Hypopharynx Nasopharyngeal Cysts Rathke pouch cyst Tornwaldt cyst Dermoid cyst Retention cysts Others Hamartomas, Choristomas, and…
Pharynx 12- to 14-cm long musculomembranous tube shaped like an inverted cone Extends from the cranial base to the lower border of the cricoid cartilage (level of the sixth cervical vertebra) Limited superiorly by the posterior part of the body…
Intraoperative consultative diagnosis on mucosal lesions may be performed in the setting of an untreated primary mucosal lesion or in the setting of a recurrent/persistent lesion after prior treatment (i.e., radiation and/or chemotherapy): In general, intraoperative consultation should not be…
General Considerations Similar to tumors of other upper aerodigestive tract sites, the most common tumors of the oral cavity are of epithelial origin: Most common benign tumor is a (squamous) papilloma Most common malignant tumor is squamous cell carcinoma or…