نتایج جستجو برای: ameloblastic proliferation

تعداد نتایج: 182624  

2017
Fatemeh Mashhadiabba Nafiseh Shamloo Mehdi Jafari Shahla Vafadar

Ameloblastic fibro-odontoma is a relatively rare, benign odontogenic tumor that usually occurs in children and adolescents with unerupted teeth. This article reports an ameloblastic fibro-odontoma in the anterior mandible as a "bump on her gum" in a 7-month-old girl. This is the first case under 9 months old reported to date. Radiographic and histologic findings as well as the treatment are dis...

2010
Shaini Basheer G. Nair

Ameloblastic fibroma is a rare mixed odontogenic tumour. Its usual site of occurrence is the posterior mandible, with very few cases being reported from the maxilla. The true nature of the lesion hamartomatous or neoplastic – is still a point of debate. Here, we report a case of ameloblastic fibroma in the anterior maxilla.

2011
Laurindo Moacir Sassi Roberta Targa Stramandinoli José Luis Dissenha Fernando Luis Zanferrari Juliana Lucena Schussel

Introduction: The ameloblastic fibro-odontoma is a rare mixed neoplasm composed of proliferating odontogenic epithelium, ectomesenchymal tissue, and varying degrees of dental hard tissue formation. The mean age of the incidence is from 8-12 years and there is no gender or anatomic site predilection, but it is most commonly found in children’s or teenager’s jaws. Case report: A 3-year-old female...

Journal: :dental research journal 0
venkatesh v. kamath krishnanand satelur komali yerlagudda

malignant transformation of ameloblastomas arising from an odontogenic cyst or de novo is wellrecognized. malignancies in ameloblastomas may involve metastasis or a local dysplastic change in the tissue. the latter are classified as ameloblastic carcinomas. a 75-year-old male presented with a mandibular cystic swelling, with no evidence of metastasis. dysplastic ameloblastic cells with spindlec...

Hamed Mortazavi Jahanshah Salehinejad Majid Eshghpour, Reza Shahakbari Seyed Ali Banihashem Rad

Introduction: Ameloblastic fibro-odontoma is a rare, benign, asymptomatic tumor. The term ameloblastic fibro-odontoma was first used by Hooker in 1967 as a separate lesion from ameloblastic odontoma.   Case Report: This case report describes an eleven years old female with large ameloblastic fibro-odontoma in the right maxillary sinus.   Conclusion: There is a low potential for recurrence after...

Journal: :European journal of medical research 2008
K Nakano C H Siar H Tsujigiwa H Nagatsuka N Nagai T Kawakami

BACKGROUND In general, Notch is a representative signal which controls morphosis and differentiation of cells, but its role in human odontogenic neoplasms, especially in ameloblastoma and its malignant counterpart, ameloblastic carcinoma, is not known. METHODS We examined Notch1 peptide and its gene (mRNA) in an ameloblastoma (case 1: 27-year-old female, right mandibular tumor) and an amelobl...

2014
AKIRA TEMPAKU YOSHINOBU TAKAHASHI HIDETOSHI IKEDA SHIGERU YAMAUCHI TAKASHI GOTOH NOBUYUKI BANDOH SYUJIROU MAKINO TAKUJI SHIMADA HAJIME KAMADA

Ameloblastic carcinoma, secondary type, is an extremely rare odontogenic malignant tumor. The present study reports the case of a 58-year-old male with ameloblastic carcinoma that extended into the intracranial space close to the internal carotid artery. Surgical excision was performed, as headaches were being caused via compression by the mass. Small remnants of the tumor remained surrounding ...

2013
Makoto Tanaka Osamu Sawamoto

A spontaneous ameloblastic fibroma was found in a 9-week-old guinea pig. Histopathologically, neoplastic cells consisted of two components: an odontogenic epithelium and odontogenic mesenchyme. The odontogenic epithelium formed strands, nests and islands that were interspersed within the odontogenic mesenchyme. In the marginal region, odontoblasts and scant dysplastic eosinophilic material were...

Journal: : 2022

Objective. To study the pathomorphological structure of ameloblastomas and work out their classification. Materials methods. Histological analysis material obtained after removal jaws in 67 patients was carried out. Results. Pathomorphological classification suggested based on studies Conclusions. The term “ameloblastoma” refers to two groups tumours: true pseudoameloblastomas. Eight structural...

Journal: :The Chinese journal of dental research : the official journal of the Scientific Section of the Chinese Stomatological Association 2013
Hai Yan Luo Yan Gao

Ghost cell differentiation within an ameloblastic fibroma is extremely rare. The ghost cells found in an ameloblastic fibroma in previously reported cases were all associated with a typical calcifying odontogenic cyst. Here, we report a case of an ameloblastic fibroma with focal ghost cells and calcifications in some neoplastic epithelial islands, but without other histologic manifestations con...

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