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Necrotizing sialometaplasia ( NS) is a benign, ulcerative lesion, usually located towards the back of the hard palate. It is thought to be caused by ischemic necrosis (death of tissue due to lack of blood supply) of minor salivary glands in response to trauma. Often painless, the condition is self-limiting and should heal in 6–10 weeks.
It is most commonly found in the palate. [2] The name of the tumor derives from the fact that: It has a varied microscopic architectural appearance, i.e. it is polymorphous. It is non-aggressive when compared to other oral cavity tumors, i.e. it is a low-grade tumor. [1] It forms glands, i.e. it is an adenocarcinoma.
Oral cancer is a subgroup of head and neck cancers which includes those of the oropharynx, larynx, nasal cavity and paranasal sinuses, salivary glands, and thyroid gland. Oral melanoma, while part of head and neck cancers is considered separately. [ 6] Other cancers can occur in the mouth (such as bone cancer, lymphoma, or metastatic cancers ...
Head and neck cancer is a general term encompassing multiple cancers that can develop in the head and neck region. These include cancers of the mouth, tongue, gums and lips ( oral cancer ), voice box ( laryngeal ), throat ( nasopharyngeal, oropharyngeal, hypopharyngeal ), salivary glands, nose and sinuses. [ 5]
Smoker's melanosis. Smoker's melanosis is seen with the naked eye as a brown to black pigmentation of the oral tissue i.e. the gums, [ 1] cheeks or palate [ 2] as well as in larynx. [ 3][ 4] It is most often seen in the lower labial gingiva of tobacco users. Most easily it is found in Caucasians, due to their lack of a genetically caused ...
The soft palate is in these cases cleft as well. In most cases, cleft lip is also present. Palate cleft can occur as complete (soft and hard palate, possibly including a gap in the jaw) or incomplete (a 'hole' in the roof of the mouth, usually as a cleft soft palate). When cleft palate occurs, the uvula is usually split.
Mouth breathing, medically known as chronic oral ventilation, is long-term breathing through the mouth. It often is caused by an obstruction to breathing through the nose, the innate breathing organ in the human body. [ 3][ 4][ 5] However, by the early 20th century, the term "mouth-breather" had developed a pejorative slang meaning connoting a ...
Specialty. Otorhinolaryngology, sleep medicine. Snoring is the vibration of respiratory structures and the resulting sound due to obstructed air movement during breathing while sleeping. The sound may be soft or loud and unpleasant. Snoring during sleep may be a sign, or first alarm, of obstructive sleep apnea (OSA).