نتایج جستجو برای: odontogenic epithelium

تعداد نتایج: 73441  

2013
Vindhya Savithri

Unicystic ameloblastoma (UA) is a variant of the solid or multicystic ameloblastoma. Radiographically, though the unilocular appearance is common, it can produce multilocular lesions also. Histologically, the minimum criterion for diagnosing a lesion as UA is the demonstration of a single cystic sac lined by ameloblastomatous epithelium often only in focal areas with or without areas of intralu...

Journal: :Head & neck 2009
Farzana Mahomed Mario Altini Shabnum Meer Ephraim Rikhotso Craig Pearl

BACKGROUND Primary intraosseous salivary-type adenocarcinomas are rare neoplasms of uncertain histogenesis. The prevailing theories suggest origin from heterotopic salivary glands, odontogenic rests, or cystic epithelium. METHODS A case of central adenoid cystic carcinoma is reported in a 53-year-old woman who presented with a painless swelling in the anterior segment of her lower jaw. Radiog...

ژورنال: مجله دندانپزشکی 2004
اسلامی, محمد, تیرگری, فرخ, رضوانی, گیتا, عشقیار, نصرت اله,

Statement of Problem: Differentiation of dentigerous cyst from unicystic ameloblastoma, discovering any initial ameloblastic changes in lining epithelium of dentigerous cyst at early stage, and differentiation between hyperplastic odontogenic epithelium in fibrous capsule of dentigerous cyst from ameloblastic proliferation, need to an accurate and reliable technique.Purpose: The aim of this stu...

Journal: :Balkan Journal of Dental Medicine 2023

Background/Aim: Optical coherence tomography (OCT) is an optical imaging method used in the examination of superficial tissues ophthalmology, cardiology, dermatology and dentistry. It can provide high resolution microscopic images uses infrared light. OCT was as auxiliary diagnostic this study. Material Methods: Ex vivo samples arteriovenous malformation, odontogenic keratocyst, peripheral gian...

2013
Kazuma Noguchi Hiromitsu Kishimoto Koji Yamanegi Kuniyasu Moridera Kazuki Takaoka Masahiro Urade

Ameloblastoma is the most common odontogenic tumor, but the incidence of its metastasis is extremely low. We report a case of unicystic ameloblastoma metastasizing to the cervical lymph nodes. This patient pointed out a radiolucent cystic lesion with impacted wisdom tooth in the left mandibular region, and recieved enucleation of the cystic lesion and removal of the wisdom tooth. Histopathogica...

Journal: :dental research journal 0
seyed mohammad razavi hamid poursadeghi atousa aminzadeh

background: the different growth mechanism and biologic behavior of the odontogenic keratocyst(okc) compared to other odontogenic cysts might be related to the proliferating capacity of itsepithelium. in this study, the aim was to evaluate and compare the distribution and staining intensityof p16 and cyclin d1 in okc and unicystic ameloblastoma (ua). materials and methods: in this descriptive a...

2016
Yunfei Zheng Lingfei Jia Pengfei Liu Dandan Yang Waner Hu Shubin Chen Yuming Zhao Jinglei Cai Duanqing Pei Lihong Ge Shicheng Wei Alistair Forrest

Background. Mouse dental mesenchymal cells (mDMCs) from tooth germs of cap or later stages are frequently used in the context of developmental biology or whole-tooth regeneration due to their odontogenic potential. In vitro-expanded mDMCs serve as an alternative cell source considering the difficulty in obtaining primary mDMCs; however, cultured mDMCs fail to support tooth development as a resu...

2013
Miroslav Andrić Božidar Brković Vladimir Jurišić Milan Jurišić Jelena Milašin

Keratocystic odontogenic tumors (KCOTs) are certainly among the most studied lesions in oral pathology, which is not a surprise considering their perplexing clinical behavior and complicated mechanism of pathogenesis. In fact, the specific KCOT features are the reason for numerous discussions regarding the true nature and classification of these lesions, which are still debated in the scientifi...

Journal: :Journal of oral science 2015
Miyako Hoshino Harumi Inoue Kentaro Kikuchi Yuji Miyazaki Atsuo Yoshino Hiroyuki Hara Tadashi Terui Kaoru Kusama Hideaki Sakashita

Dermoid cysts (DMCs) and epidermoid cysts (EDMCs) usually arise in soft tissues, whereas orthokeratinized odontogenic cysts (OOCs) and keratocystic odontogenic tumors (KCOTs) develop in the jaw. In this study, we performed immunohistochemical analysis of cytokeratins (CKs) to examine differences in the lining epithelium of DMCs, EDMCs, OOCs, and KCOTs. In addition, we carried out immunohistoche...

Journal: :Archives of dermatology 2011
Leonard H Goldberg Jennifer M Landau Megan N Moody Natalia Kazakevich Aton M Holzer Adam Myers

BACKGROUND Odontogenic keratocysts of the jaw are a central feature of basal cell nevus syndrome (BCNS) and arise from the basal cell layer of the surface epithelium. Although they are benign, they tend to be aggressive, with local invasion of bony structures, extensive growth, and potential for substantial disfigurement and speech dysfunction. Complete surgical resection is the current standar...

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