Background: Although clonal origin is an essential step in the comprehension of neoplasias, there have been no studies to examine whether odontogenic tumours are derived from a single somatic progenitor cell. The purpose of this study was to investigate the clonal origin of odontogenic tumours.
Methods: Fresh samples of seven ameloblastomas, two odontogenic mixomas, two adenomatoid odontogenic tumour, one calcifying odontogenic cyst, one calcifying epithelial odontogenic tumour (CEOT) and six odontogenic keratocyst (OKC) of female patients were included in this study. After DNA extraction, the HUMARA gene polymorphism assay was performed.
Results: Most of the informative odontogenic lesions studied (12 out of 16) showed a monoclonal pattern. Among the polyclonal cases, two were OKC, one CEOT and one odontogenic mixoma.
Conclusions: Our results suggest that most odontogenic tumours are monoclonal.
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http://dx.doi.org/10.1111/j.1600-0714.2008.00744.x | DOI Listing |
J Dent Sci
January 2025
Department of Oral and Maxillofacial Radiology, Yonsei University College of Dentistry, Seoul, Republic of Korea.
Background/purpose: This study analyzed the clinical and imaging features of lingual mandibular bone depression (LMBD) in the anterior mandible, aiming to prevent misdiagnosis and unnecessary surgical procedures.
Materials And Methods: The patients who visited a university dental hospital for painless radiolucency in the anterior mandible from January 2010 to December 2022 were retrospectively reviewed. Twelve cases of LMBD in the anterior mandible that are confirmed by biopsy or long-term follow-up were identified.
BMJ Case Rep
January 2025
Department of Oral and Maxillofacial Surgery, Indira Gandhi Institute of Dental Sciences, Sri Balaji Vidyapeeth (Deemed to be University), Pondicherry, India.
A calcifying epithelial odontogenic tumour (CEOT) is a rare benign odontogenic tumour of epithelial origin accounting for approximately 1% of all odontogenic tumours. The intraosseous form occurs more commonly in the posterior mandible whereas the extraosseous form is common in the anterior maxilla. CEOT is often asymptomatic and presents with a painless swelling of the mandible.
View Article and Find Full Text PDFSemin Diagn Pathol
January 2025
Dept of Oral & Maxillofacial Pathology and Oral Microbiology, King George's Medical University, Lucknow, India. Electronic address:
Ameloblastomas (AM) are locally aggressive tumors, with hemangiomatous ameloblastoma (HA) being a rare subtype characterized by vascular proliferation, predominantly in the stroma but occasionally within the epithelial component. We report a case of a 32-year-old male with recurrent mandibular swelling, histopathologically diagnosed as unicystic HA, showing vascularity in both stroma and odontogenic epithelial islands with GLUT1 positivity in the latter. A review of 31 cases revealed a male predilection, mandibular dominance (89.
View Article and Find Full Text PDFOral Oncol
January 2025
Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun 130012, China. Electronic address:
Calcifying epithelial odontogenic tumor (CEOT) is a rare benign odontogenic epithelial tumor characterized by the presence of amyloid material within the tumor that can undergo calcification. CEOT affects individuals across a broad age range, typically between 20 and 60 years, with an average onset age of 40 years. However, it is extremely rare in children and adolescents.
View Article and Find Full Text PDFGeorgian Med News
November 2024
1Faculty of Dentistry, Azerbaijan Medical University, Baku, Azerbaijan.
Background: Odontogenic cysts, generally classified as inflammatory or developmental, in dental practice are usually identified incidentally, on routine exams and constitute an important aspect of oral and maxillofacial pathology. A few literature sources provide epidemiological data on odontogenic cysts and tumors. However, these findings may help us to better understand such lesions and improve the diagnosis of odontogenic cysts and tumors.
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