NONCHARACTERIZED ODONTOGENIC LESION ENCOMPASSED BY PRIMORDIAL ODONTOGENIC TUMOR AND ADENOMATOID ODONTOGENIC HAMARTOMA

2020 ◽  
Vol 129 (1) ◽  
pp. e23
Author(s):  
L.A.E.C. RAMIRO FRANKLIN BERNAL FARO ◽  
FRANKLIN BERNAL ◽  
VANIA ARIAS MÉNDEZ ◽  
VANIA ARIAS-M. F
Keyword(s):  
Odontogenic Tumor ◽  
Odontogenic Lesion ◽  
Primordial Odontogenic Tumor

scholarly journals A Case Report of Primordial Odontogenic Tumor That Required Distinction from a Dentigerous Cyst

Reports ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 4
Author(s):  
Sawako Ono ◽  
Hotaka Kawai ◽  
Shintaro Sukegawa ◽  
Kiyofumi Takabatake ◽  
Keisuke Nakano ◽  
...  
Keyword(s):  
Root Resorption ◽  
Dentigerous Cyst ◽  
Fibrous Tissue ◽  
Clinical Findings ◽  
Odontogenic Tumor ◽  
Columnar Epithelium ◽  
Solid Mass ◽  
Histological Differentiation ◽  
Second Molar ◽  
Primordial Odontogenic Tumor

Primordial odontogenic tumor (POT) is a rare odontogenic tumor characterized by a variably cellular loose fibrous tissue with areas similar to the dental papilla and covered by cuboidal to columnar epithelium. We herein report a case of POT in a 14-year-old boy. Computed tomography (CT) exhibited a round cavity with a defined cortical border circumscribing the tooth of the second molar. However, the gross finding was a solid mass, not a cyst. Histologically, the tumor consisted of dental papillalike myxoid connective tissue covered by columnar epithelium. Therefore, although the clinical diagnosis was dentigerous cyst (DC), we diagnosed POT based on histologic findings. Clinical findings of POT resemble DC, but the clinical behavior of POT is different to DC, such as cortical expansion and root resorption of teeth. Therefore, histological differentiation of POT from DC is critical for accurate diagnosis.

scholarly journals An unusually large aggressive adenomatoid odontogenic tumor of maxilla involving the third molar: A clinical case report

2016 ◽  
Vol 10 (02) ◽  
pp. 277-280 ◽  
Author(s):  
Vikas Dhupar ◽  
Francis Akkara ◽  
Pulkit Khandelwal
Keyword(s):  
Rare Case ◽  
Third Molar ◽  
Odontogenic Tumor ◽  
Adenomatoid Odontogenic Tumor ◽  
Impacted Tooth ◽  
The Third ◽  
Impacted Third Molar ◽  
Simultaneous Reconstruction ◽  
Odontogenic Lesion ◽  
Temporalis Myofascial Flap

ABSTRACTAdenomatoid odontogenic tumor (AOT) is a rare tumor comprising only 3% of all odontogenic tumors. It is a benign, encapsulated, noninvasive, nonaggressive, slowly growing odontogenic lesion associated with an impacted tooth. These lesions may go unnoticed for years. The usual treatment is enucleation and curettage, and the lesion does not recur. Here, we present a rare case of an unusually large aggressive AOT of maxilla associated with impacted third molar. The authors also discuss clinical, radiographic, histopathologic, and therapeutic features of the case. Subtotal maxillectomy with simultaneous reconstruction of the surgical defect with temporalis myofascial flap was planned and carried out.

Evaluation of the Connective Tissue Wall in Sporadic Cases of Keratocystic Odontogenic Tumor (KCOT) Using MMP-9 and Confocal Microscopy: A Retrospective Study

2021 ◽  
Vol 12 (1) ◽  
pp. 134-143
Author(s):  
Merlin Jayaraj ◽  
Pratibha Ramani ◽  
Herald J. Sherlin
Keyword(s):  
Confocal Microscopy ◽  
Connective Tissue ◽  
Dentigerous Cyst ◽  
Odontogenic Tumor ◽  
Biological Behavior ◽  
Keratocystic Odontogenic Tumor ◽  
Extracellular Matrix Components ◽  
Sporadic Cases ◽  
Odontogenic Lesion ◽  
Inherent Nature

Background: Keratocystic odontogenic tumor (KCOT) is an odontogenic lesion which manifests distinct biological behavior. Predominant studies in KCOT attribute this behavior to high epithelial proliferative capacity. Besides, a few studies facet loosely arranged collagen can contribute to the behavior of KCOT. Matrix metalloproteinases (MMP) are enzymes that degrade extracellular matrix components under both physiologic and pathologic conditions. The loosely arranged collagen in connective tissue wall of KCOT could be related to the degree of MMP-9 expression. Aim: To evaluate the arrangement of collagen fibers along with immunoexpression of MMP-9 and to relate to its neoplastic biologic behavior in sporadic cases of KCOT. Materials and Methods: KCOT ( n = 23) and dentigerous cyst (DC) ( n = 15) samples were processed for the following techniques: Masson’s trichrome stain for light microscopy, PMA-PSR stain for confocal microscopy, and MMP-9 for immunohistochemistry. Results: In Masson’s trichrome analysis, correlation of collagen fiber arrangement in the deeper regions with color intensity for KCOT was found to be statistically significant ( P = .033). In confocal microscopy, there was no difference between intensities in KCOT ( P = .990) and DC ( P = .233), respectively. The immunoexpression of MMP-9 in the connective tissue wall of DC (73.3%) was relatively higher than that of KCOT (60.8%). However, on comparison between KCOT and DC in the presence of inflammation, the immunoexpression of MMP-9 was higher in DC (100%) than KCOT (69.9%) and was statistically significant ( P = .028). Conclusion: It was concluded that the loose connective tissue wall in KCOT is because of the inherent nature of the lesion that could facilitate its biologic behavior. If inflammation is present, this could further aggravate the tumorigenic behavior.

scholarly journals The Challenging Diagnosis of Primordial Odontogenic Tumor

2019 ◽  
Vol 2019 ◽  
pp. 1-4 ◽  
Author(s):  
Lucas Novaes Teixeira ◽  
Cristiane Furuse ◽  
Fabrício Passador Santos ◽  
Andresa Borges Soares ◽  
Eder Magno Ferreira de Oliveira ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Young Patients ◽  
Odontogenic Tumor ◽  
Columnar Epithelium ◽  
Anatomic Site ◽  
Loose Connective Tissue ◽  
Similar Morphology ◽  
Dental Papilla ◽  
Unerupted Tooth ◽  
Primordial Odontogenic Tumor

Primordial odontogenic tumor (POT) is a benign mixed odontogenic tumor comprised of a loose connective tissue with a similar morphology with dental papilla and exhibiting in its periphery the presence of a columnar epithelium. POT occurs in young patients and typically is associated with an unerupted tooth, with the mandible being the main anatomic site of occurrence. The present manuscript is aimed at describing a new case of POT and reviewing the main biologic findings related to this odontogenic tumor.

Primordial Odontogenic Tumor: Report of a Case

2016 ◽  
Vol 74 (3) ◽  
pp. 547-551 ◽  
Author(s):  
Lee J. Slater ◽  
Liviu F. Eftimie ◽  
Alan S. Herford
Keyword(s):  
Odontogenic Tumor ◽  
Primordial Odontogenic Tumor

scholarly journals Primordial Odontogenic Tumor: Report of a New Case and Literature Review

2018 ◽  
Vol 13 (2) ◽  
pp. 125-130 ◽  
Author(s):  
Bianca Bravim Bomfim ◽  
Roberto Prado ◽  
Renato Kobler Sampaio ◽  
Danielle Castex Conde ◽  
Bruno Augusto Benevenuto de Andrade ◽  
...  
Keyword(s):  
Literature Review ◽  
Odontogenic Tumor ◽  
Primordial Odontogenic Tumor

PRIMORDIAL ODONTOGENIC TUMOR: A CASE REPORT

2016 ◽  
Vol 122 (5) ◽  
pp. e172 ◽  
Author(s):  
R. Cruz ◽  
J. Portilla ◽  
P. Gonzáles ◽  
E. Santos ◽  
A. Molotla ◽  
...  
Keyword(s):  
Case Report ◽  
Odontogenic Tumor ◽  
Primordial Odontogenic Tumor

scholarly journals Calcifying Epithelial Odontogenic Tumor (Ceot)

2013 ◽  
Vol 13 (1) ◽  
pp. 14-19
Author(s):  
Shan Nawaz Malik ◽  
Mohammad Khursheed Alam ◽  
Mariyam Shahina ◽  
Salman Siddique ◽  
Vishnu Das Prabhu
Keyword(s):  
Medical Science ◽  
Odontogenic Tumor ◽  
Odontogenic Tumors ◽  
Calcifying Epithelial Odontogenic Tumor ◽  
The Past ◽  
Complex Odontoma ◽  
Odontogenic Lesion ◽  
Epithelial Odontogenic Tumor

Calcifying epithelial odontogenic tumor is a rare benign epithelial odontogenic lesion that comprises from 0.2% to 1.1 of all odontogenic tumors. In the past a number of different names have been given to this lesion, such as calcifying ameloblastoma, cystic complex odontoma, uncommon ameloblastoma with calcifications and others. There is a need to study and explore various aspects of this tumour, this article gives a broad idea of the various aspects of this tumor and which aspect of this tumour needs more investigation. DOI: http://dx.doi.org/10.3329/bjms.v13i1.17378 Bangladesh Journal of Medical Science Vol. 13 No. 01 January2014: 14-19

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