lingual tonsil

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lingual tonsil

[′liŋ·gwəl ′tän·səl]
(anatomy)
An aggregation of lymphoid tissue composed of 35-100 separate tonsillar units occupying the posterior part of the tongue surface.
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It is also useful in soft palate, palliative tonsils, post nasal space, lingual tonsils.
Because of their similar structure to that of the palatine tonsils, the lingual tonsils have the propensity to develop infection in the same way.
Waldeyer's ring, a ring of lymphoid tissue in the pharynx, is formed by the palatine tonsils, as well as the pharyngeal tonsils (adenoids), tubal tonsils and lingual tonsils.
The palatine tonsils, found at the posterior aspect of the soft palate, and the lingual tonsils, seen at the base of the tongue anterior to the epiglottis, often enlarge during upper respiratory infections as well.
3) Human papillomavirus-positive tumors have a marked predilection for the palatine and lingual tonsils, where they account for about two-thirds of carcinomas arising at these sites in the United States.
The adenoids are located at the back of the nasopharnyx in close proximity to inhaled pathogens and are covered with ciliated pseudostratified epithelium (respiratory epithelium) that may better support primary virus replication than the palantine and lingual tonsils, which are located in the lower pharynx and covered with nonkeratinized, stratified, squamous epithelium.
While symptomatic enlargement of the palatine tonsils and adenoids is common in the pediatric population, symptomatic enlargement of the lingual tonsils is not.
Contrast-enhanced computed tomography (CT) of the neck demonstrated prominent lymphoid tissue in the nasopharynx and lingual tonsils, as well as a fungating mass that extended down into the supraglottic space and partially compromised the airway (figure 1).
On examination with a Jackson laryngoscope, there were no mucosal abnormalities, but a generalized fullness of the left piriform sinus and vallecula was observed, as well as some fullness of the lingual tonsils and faucial pillars.
In type III, obstruction emanates from the tongue, lingual tonsils, or supraglottis.