ABSTRACT
The neck is divided into anterior and posterior triangles by the sternocleidomastoid muscle. The hyoid bone divides the anterior triangle into the suprahyoid and the infrahyoid neck regions. The retropharyngeal space is onfined anteriorly by the visceral fascia and posteriorly by the prevertebral fascia. The prevertebral space is enclosed by the prevertebral fascia and lies posteriorly to the retropharyngeal space. The parapharyngeal space lies next to the pharynx and extends from the skull base to the hyoid bone. The parotid gland, the largest salivary gland, is separated, by the retromandibular or facial vein, into the larger superficial and smaller deep lobes. The larynx continues from the tip of the epiglottis to the cricoid cartilage inferiorly. The most frequent primary malignant tumor of the larynx is the squamous cell carcinoma, which is more common in elderly males, smokers, and alcoholics. Glottic carcinoma is a slow-growing and well-differentiated tumor, that arises from a true vocal cord.
