Cancers of the head and neck can occur in many different subsites, such as the salivary glands, skin, the nasal cavity, the oral cavity, the larynx, the endocrine glands, and the pharynx.
Hyperparathyroidism is a condition in which one or more of parathyroid glands over-produce parathyroid hormone. The parathyroid glands are small glands located adjacent to the thyroid gland in the neck, and they secrete a hormone responsible for the regulation of the body's calcium levels.
The parotid gland is located on either side of the face, in front of the ear over the upper portion of the jaw, with a small part extending below the earlobe. Its primary function is the production of saliva in your mouth. The gland is divided into superficial and deep lobes, with the plane of division being the facial nerve, a nerve that controls the movement of muscles on that side of the face. Both benign and malignant (cancerous) tumors can affect the gland.
The submandibular gland in located below the jaw on either side of the face. Its primary function is the production of saliva in your mouth. Both benign and malignant (cancerous) tumors can affect the gland.
The thyroid gland is located in the anterior part of the neck is responsible for the secretion of thyroid hormone, an important hormone involved in the regulation of your body's metabolism. Tumors of the thyroid gland are prevalent, and though the majority of thyroid tumors are benign, the incidence of thyroid malignancy is increasing in the U.S.