Modern aspects of clinical, radiological and computed tomographic diagnostics of odontogenic cysts and the results of their treatment

There are many classifications of jaw cystic formations. The most perfect is the International histological classification of odontogenic tumors, cystic lesions of the jaws and tumor-like processes, approved by WHO in 1971. According to WHO, the group of epithelial cysts includes both developing ones, including odontogenic (primordial or keratocyst, gingival, erupting, follicular) and non-ontogenic origin (nasopalatine duct, globular-maxillary, nasolabial or so-called naso-alveolar), and inflammatory (radicular) tumor-like formations.

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Congenital eruption cyst: a case report

Brazilian Dental Journal ◽

10.1590/s0103-64402010000300015 ◽

2010 ◽

Vol 21 (3) ◽

pp. 259-262 ◽

Cited By ~ 6

Author(s):

Ramón Manuel Alemán Navas ◽

María Guadalupe Martínez Mendoza ◽

Mário Roberto Leonardo ◽

Raquel Assed Bezerra da Silva ◽

Henry W. Herrera ◽

...

Keyword(s):

Case Report ◽

Tooth Extraction ◽

Who Classification ◽

World Health ◽

Close Monitoring ◽

Cystic Lesions ◽

Separate Entity ◽

Epithelial Cysts ◽

Health Organization

Congenital pathologies are those existing at or dating from birth. Occurrence of congenital cystic lesions in the oral cavity is uncommon in neonates. Eruption cyst (EC) is listed among these unusual lesions. It occurs within the mucosa overlying teeth that are about to erupt and, according to the current World Health Organization (WHO) classification of epithelial cysts of the jaws, EC is a separate entity. This paper presents a case of congenital EC successfully managed by close monitoring of the lesion, without any surgical procedure or tooth extraction. Eruption of the teeth involved, primary central incisors, occurred at the fourth month of age. During this time neither the child nor mother had any complication such as pain on sucking, refusal to feed, airway obstruction, or aspiration of fluids or teeth.

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Odontogenic Carcinoma With Dentinoid in Long-Term Follow-up With 2 Recurrences

International Journal of Surgical Pathology ◽

10.1177/1066896919871662 ◽

2019 ◽

Vol 28 (2) ◽

pp. 181-187 ◽

Cited By ~ 1

Author(s):

Fernanda Viviane Mariano ◽

Rogério Oliveira Gondak ◽

João Figueira Scarini ◽

Eduardo Caetano Albino da Silva ◽

Gisele Caravina ◽

...

Keyword(s):

World Health Organization ◽

World Health ◽

Odontogenic Tumors ◽

Ossifying Fibroma ◽

Histological Classification ◽

Cytological Evidence ◽

Odontogenic Carcinoma ◽

Health Organization

Dentinoid has been mentioned as a frequent component in several types of benign odontogenic tumors; however, there are some other very rare dentinoid-producing odontogenic tumors that have been described, which are not recognized in the current World Health Organization Histological Classification of Odontogenic Tumours. In this context, we report an unusual malignant odontogenic tumor containing dentinoid located in the left maxilla of a 41-year-old man. The lesion was initially diagnosed and treated as a cemento-ossifying fibroma. After 7 years, a tumor was noted at the same location and was diagnosed as pleomorphic adenoma. The patient developed a new lesion 2 years later. Histological features included an epithelial proliferation of basaloid and clear cells, some with peripheral palisading, which were scattered both in a fibrous stroma and within an amorphous eosinophilic dentinoid product. Because of doubts about the first 2 diagnoses and the current situation, all histopathological slides were reviewed in our service as a consultation case, and the findings were consistent with the diagnosis of an odontogenic carcinoma with dentinoid. Immunohistochemical analysis was performed and an ultrastructural study by scanning electronic microscopy and energy-dispersive X-ray microanalysis was made to characterize dentinoid material. After 1 year of follow-up, the patient is alive and free of the disease. This case highlights the wide variability regarding cytological evidence of malignancy, and adds a new case of odontogenic carcinoma with dentinoid, which represents a distinct entity with locally aggressive behavior and should be considered be included in a future World Health Organization Histological Classification of Tumours.

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