Open full size image Open full size image Neurogenic tumors and paragangliomas form a very small percentage of all neoplastic lesions of the head and neck region. Although these tumors are considered under the major heading of “soft tissue tumors,”…
Open full size image Open full size image Open full size image Salivary glands are divided into major (parotid, submandibular, and sublingual) and minor salivary glands. Major salivary glands are paired structures, and minor glands exist in a submucosal location…
Open full size image Open full size image Palpable nodularity in the thyroid gland is common, especially in women and older persons. The incidence of palpable nodularity in the thyroid gland in the United States is reported to be 4%…
Open full size image Open full size image Open full size image One of the most important factors affecting prognosis for patients with squamous cell carcinoma of the upper aerodigestive tract is the status of cervical lymph nodes at the…
Open full size image Open full size image Open full size image The larynx plays a central role in coordinating the functions of the upper aerodigestive tract, including respiration, speech, and swallowing. The larynx is the second most common site…
Open full size image Open full size image Open full size image The pharynx is the intermediate part of the upper aerodigestive tract in the head and neck region, connecting the nasal cavity to the lower airway thru the larynx…
Open full size image Open full size image Open full size image The oral cavity represents the entrance to the upper aerodigestive tract, which begins at the lips and ends at the anterior surface of the faucial arch. It is…
Open full size image Open full size image Open full size image The lips, which are located at the entrance to the alimentary tract, are essential for a variety of complex tasks, including articulation of speech, facial expression, and the…
Open full size image Open full size image Open full size image Tumors involving the skull base of the anterior cranial fossa usually arise extracranially with secondary extension to the skull base. Occasionally intracranial tumors such as meningiomas may have…
Open full size image Open full size image Malignancies of the sinonasal tract are rare. They account for less than 10% of head and neck cancers, with an annual incidence of 0.5 to 1.0 per 100,000 people in the United…