tonsil

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tonsil

1. either of two small masses of lymphatic tissue situated one on each side of the back of the mouth
2. Anatomy any small rounded mass of tissue, esp lymphatic tissue

Tonsil

Localized aggregation of diffuse and nodular lymphoid tissue found in the region where the nasal and oral cavities open into the pharynx. The tonsils are important sources of blood lymphocytes. They often become inflamed and enlarged, necessitating surgical removal.

The two palatine (faucial) tonsils are almond-shaped bodies measuring 1 by 0.5 in. (2.5 by 1.2 cm) and are embedded between folds of tissue connecting the pharynx and posterior part of the tongue with the soft palate. These are the structures commonly known as the tonsils. The lingual tonsil occupies the posterior part of the tongue surface. It is really a collection of 35–100 separate tonsillar units, each having a single crypt surrounded by lymphoid tissue. Each tonsil forms a smooth swelling about 0.08– 0.16 in. (2–4 mm) in diameter. The pharyngeal tonsil (called adenoids when enlarged) occupies the roof of the nasal part of the pharynx. This tonsil may enlarge to block the nasal passage, forcing mouth breathing. See Lymphatic system

tonsil

[′tän·səl]
(anatomy)
Localized aggregation of diffuse and nodular lymphoid tissue found in the throat where the nasal and oral cavities open into the pharynx.
References in periodicals archive ?
Neck stiffness as cerebellar tonsils compress against the foramen magnum (as opposed to meningism from meningitis beware of performing a lumbar puncture in the patient with tonsillar herniation)
Other variably present findings include crowding of the basilar cisterns due to brain sagging, pituitary enlargement, cerebellar tonsillar ectopia, and distension of the venous sinuses.
The current diagnostic criteria for CMI is MRI (generally of the brain and/or cervical spine) evidence of tonsillar herniation of 5 mm or more below the level of the foramen magnum (Milhorat et al.
Aim: The aim of this clinical prospective study is to evaluate the relationship between Epstein-Barr virus (EBV) and asymmetric and symmetric tonsillar hypertrophy in children between 3-14 years old.
Comparison of CSF flow patterns between symptomatic and asymptomatic patients, those with or without syringomyelia, and those with syringomyelia but with or without tonsillar herniation, is possible.
Lots of people get tiny pouches in their tonsils called tonsillar crypts.
The autopsy found he had suffered tonsillar herniation due to swelling of the brain which pathologist Dr Ciaran O Riain attributed to hyponatraemia - an electrolyte disturbance caused by lower than normal sodium levels.
They address virology and pathogenesis; epidemiology; clinical aspects of low-risk and high-risk HPV infections, including genitoanal warts, recurrent respiratory papillomatosis, and cervical, vulval, vaginal, penile, anal, and tonsillar cancer; and diagnosis for early detection, including cytology, biomarker development, detection of HPV DNA and RNA, and testing in primary screening for cervical cancer.
Tonsilloliths are white or yellowish calcified structures of bacteria and organic debris that commonly develop in enlarged tonsillar crypts.
Recent findings suggest that HBoV may establish persistent infection of mucosal lymphocytes or contribute to tonsillar hyperplasia in children (2).
The posterior tonsillar pillars were also swollen and ulcerated (Figure 1).
In the Nov/Dec 2010 issue, Ruth Raker, Panama City Beach, Florida, asked about semi-hard deposits on her tonsils-a problem that dentists call tonsillar stones and sometimes dislodge while using a topical anesthetic.