What are non-odontogenic cysts?
Non-odontogenic cysts are usually discovered during a routine examination. These lesions arise from the non-odontogenic (non-tooth forming) tissue. By definition, the cysts are lined by epithelium. Cysts within the oral cavity vary in their clinical appearance, incidence, histology, behavior, and management.
What is the most common non-odontogenic cyst?
The most common OCs (57.2%) were dentigerous and radicular, whereas the most common nonodontogenic cyst (42.8%) was nasopalatine duct cyst. Other soft tissue cysts reported were epidermoid, branchial, thyroglossal, dermoid, and cystic hygroma.
How do you classify a cyst?
A cyst is a uni- or multilocular, epithelium-lined cavity of various etiologies that contains liquid or gaseous materials. Non-epithelium-lined cavities are classified as “pseudocysts”. In clinical practice, both pseudocysts and cysts are generally referred to as “cysts”.
What is the difference between odontogenic and Nonodontogenic cyst?
Odontogenic cysts arise from remnants of the odontogenic epithelium entrapped in bone or gingival tissue, while non-odontogenic cysts develop from epithelium of non-odontogenic origin.
WHO classification odontogenic cyst?
Calcified cystic odontogenic tumor is now classified as a ‘calcifying odontogenic cyst;’ and keratocystic odontogenic tumor is now listed as ‘odontogenic keratocyst (OKC)’ in the 2017 classification of developmental odontogenic cysts.
What is non odontogenic?
Odontogenic pain refers to pain originated from dental origin whereas non-odontogenic pain can arise from any anatomical structure (ear, nose, and throat; neuralgic pain) of the orofacial region.
Which is the most common odontogenic cyst?
Periapical cyst (The periapical cyst, otherwise known as radicular cyst, is the most common odontogenic cyst.)
What is a non enhancing cyst?
Nonenhancing hyperattenuating cysts that are larger than 3 cm or completely intrarenal are included in this category (1). According to one study, 95% of these lesions are benign and therefore have a low probability of being small renal cell carcinoma and a low chance of metastasis (6).
What are non odontogenic tumors?
Primary intraosseous tumors of non-odontogenic origin arising in children and adolescents include osteoma and osteoblastoma, Langerhans cell histiocytosis, desmoplastic fibroma, inflammatory myofibroblastic tumor, juvenile ossifying fibroma, Ewing sarcoma and osteosarcoma, and primary intraosseous lymphoma.
WHO classification odontogenic cyst 2005?
Type 1: simple cystic. Type 2: CCOT associated with an odontoma. Type 3: with ameloblastomatous-like proliferation. Type 4: associated with other benign odontogenic tumors other than odontoma.
What are non-odontogenic infections?
Odontogenic infections include dental caries, periodontal disease, and suppurative deep space infections. Non-odontogenic infections include pyogenic infections of the face and neck, infections of the oral mucosa, oropharyngeal candidiasis, sialadenitis and parotitis.
What are odontogenic and non-odontogenic cysts?
Cysts that arise from tissue (s) that would normally develop into teeth are referred to as odontogenic cysts. Other cysts of the jaws are termed non-odontogenic cysts. Non-odontogenic cysts arise from tissues other than those involved in tooth development may contain structures such as epithelium from…
What is a dental cyst?
Definition / general A cyst is a pathologic cavity lined by epithelium and may be located within the oral soft tissues or an intra-osseous location within the jaws Cysts may be odontogenic or nonodontogenic in origin Odontogenic cysts arise from tissues involved in tooth formation
What is the 2017 classification of odontogenic tumors?
Odontogenic cysts have been reincorporated into the 2017 classification and updated significantly from the 1992 classification. The overall classification of odontogenic tumors focuses on those that are biologically benign and those that are malignant.
What is the pathophysiology of nonodontogenic nasal cysts?
The majority of the nonodontogenic cysts are benign, but the nasopalatine duct cyst has been reported to undergo malignant transformation to squamous cell carcinoma Postoperative “complication” with cystic expansion of respiratory epithelium within maxilla, often with ciliated or mucous cells within cystic lining