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Cysts of the jaws are cysts—pathological epithelial-lined cavities filled with fluid or soft material—occurring on the bones of the jaws, the mandible and maxilla. Those are the bones with the highest prevalence of cysts in the human body, due to the abundant amount of epithelial remnants that can be left in the bones of the jaws.
[13] [2] Protein content of cyst fluid below 4g% is diagnostic of odontogenic keratocysts. [2] Smaller and unilocular lesions resembling other types of cysts may require a biopsy to confirm the diagnosis. [10] On a CT scan, the radiodensity of a keratocystic odontogenic tumour is about 30 Hounsfield units, which is about the same as ...
A median mandibular cyst is a type of cyst that occurs in the midline of the mandible, thought to be created by proliferation and cystic degeneration of resting epithelial tissue that is left trapped within the substance of the bone during embryologic fusion of the two halves of the mandible, along the plane of fusion later termed the symphysis menti.
Fibrous dysplasia of the right zygomatic bone (left). Corresponding T2-weighted MRI (left) and CT (right) of the same patient. Corresponding T2-weighted MRI (left) and CT (right) of the same patient. Fibrous dysplasia is a mosaic disease that can involve any part or combination of the craniofacial, axillary, and/or appendicular skeleton . [ 7 ]
Median palatal cysts are uncommon hard palate fissural cysts that are not odontogenic. These lesions are located behind the incisive canal in the midline of the hard palate . The majority of the time, median palatine cysts are asymptomatic and are discovered by coincidence while a patient is being evaluated for a different ailment.
A glandular odontogenic cyst (GOC) is a rare and usually benign odontogenic cyst developed at the odontogenic epithelium of the mandible or maxilla. [2] [8] [9] [10] Originally, the cyst was labeled as "sialo-odontogenic cyst" in 1987. [7] However, the World Health Organization (WHO) decided to adopt the medical expression "glandular ...
It is rare but have been reported in literature that cysts can display mandibular or maxillary bone expansion, bone perforation and overlying gingiva communication. [10] Lateral periodontal cysts radiographically present as a rounded, teardrop shape that are usually less than 10mm in size, presenting with a uni-cystic well-delineated radiolucency.
The Stafne defect (also termed Stafne's idiopathic bone cavity, Stafne bone cavity, Stafne bone cyst (misnomer), lingual mandibular salivary gland depression, lingual mandibular cortical defect, latent bone cyst, or static bone cyst) is a depression of the mandible, most commonly located on the lingual surface (the side nearest the tongue).