Nonodontogenic cysts

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Nonodontogenic ( dysontogenic ) cysts are cysts in the mouth and jaw area that are not caused by teeth or dental organs .

Nasopalatal cyst

The nasopalatal cyst is also known as the “cyst of the ductus nasopalatinus”. It arises from epithelial remnants of the duct that connected the oral cavity with the nasal cavity during the embryonic period. After the birth, this duct consists only of a bone canal ( canalis incisivus ) through which the vessels and nerves of the same name run. In rare cases, a cyst can form in this duct, the cause of which is strictly median (in the middle). In the X-ray image such cyst (heart- or pear-shaped) possibly of a is at the root tips of the upper central incisors located radicular cyst difficult to distinguish. A sensitivity test can provide certainty here.

Dermoid and epidermoid cysts

Dermoid and epidermoid cysts are found on the ovary (ovary), in the testis (testis), but also in the middle of the lower jaw , namely at the point where the two halves of the lower jaw have grown together. In the lower jaw they are therefore exactly median (in the middle) and can be located under the tongue or under the chin . Here they fake a double chin.

Ranula

A ranula (from Latin : rana "frog") is a spherical, superficially often livid bulge under the tongue . Because it looks like the throat pouch of a frog, it is also called a frog tumor or frog tumor . Retention cysts (see below) of the sublingual gland ( glandula sublingualis ) or the submandibular gland ( glandula submandibularis ) or their duct (ductus submandibularis) may be the cause . Therapy: See Odontogenic Cyst . In the case of recurrences , the gland may have to be removed ( extirpation ).

Mucosal retention cyst

Mucosal retention cysts develop when the drainage from the small mucosal glands in the lip and cheek area becomes blocked. They can be recognized by the easily movable "vesicles" located directly under the mucous membrane, which are occasionally bitten into by the patient. Therapy: extirpation .

See also

Individual evidence

  1. ^ Joseph Maria Stowasser : Der Kleine Stowasser , Latin-German school dictionary , G. Freytag Verlag, Munich

swell

  • Joachim Gabka, Herbert Harnisch: Operation course for dentists. Georg Thieme Verlag, Stuttgart 1982, ISBN 3-13-487202-1 .