keyword
MENU ▼
Read by QxMD icon Read
search

Odontogenic tumor

keyword
https://www.readbyqxmd.com/read/28212886/primary-ameloblastoma-of-the-temporal-bone
#1
Andro Košec, Jakov Ajduk, Mihael Ries, Robert Trotić
Ameloblastoma is a locally aggressive tumor derived from odontogenic epithelium. Although benign, its clinical behavior can often exhibit malignant characteristics. It is marked by slow and persistent growth with infiltration of adjacent tissues. Almost 70% occur in the mandible in patients older than 30 years. Recurrence of ameloblastoma from inadequate treatment is frequent. Because of its slow growth, recurrences can present decades after primary surgery. A primary ameloblastoma in an area outside the mandibular, maxillary, and infratemporal fossa regions has not been described in detail to date, with only 1 possible case mentioned in the literature...
January 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28209160/odontogenic-tumors-in-ethiopia-eight-years-retrospective-study
#2
Bruktawit Kebede, Dawit Tare, Birke Bogale, Fessahaye Alemseged
BACKGROUND: Odontogenic tumor (OT) comprises a large heterogeneous group of lesions arising from tooth producing tissues or its remnants. Studies on OTs are scarce in Ethiopia. Thus, the present study aimed to assess the pattern of OTs in Ethiopia. METHODS: An 8 years retrospective study was conducted at the Dental and Maxillofacial Department, St. Paul's referral hospital, Addis Ababa, Ethiopia. Data were collected by reviewing the medical records of patients who visited the Department from September 2008 to August 2015...
February 16, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28199753/tnf-%C3%AE-308g-a-and-tnf-r1-36a-g-single-nucleotide-polymorphisms-are-strong-risk-factors-for-odontogenic-keratocystic-tumor-development
#3
Branislav Ilic, Nadja Nikolic, Miroslav Andric, Drago Jelovac, Biljana Milicic, Tanja Jozic, Slobodan Krstic, Jelena Milasin
BACKGROUND: Polymorphisms in genes encoding tumor necrosis factor α (TNF α) and its receptor TNF-R1, have been shown to affect one person's susceptibility to develop certain neoplastic diseases. The aim of the present association study was to investigate whether single nucleotide polymorphisms (SNPs) in TNF α (-308G>A) and TNF-R1 (36A>G) genes modulate the susceptibility for keratocystic odontogenic tumors (KCOTs) development in Serbian patients. METHODS: Genotyping was done in 60 KCOT patients and 125 healthy individuals, using polymerase chain reaction/restriction fragment length polymorphism analysis...
February 15, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28191811/metastatic-ameloblastoma-to-brain-a-rare-entity
#4
Arif Sarmast, Khursheed Nayil-M, Rumana Makhdoomi, Azhar Butto, Altaf Ramzan
Ameloblastoma is a rare odontogenic tumor of the jaw. It is a benign neoplasm but local recurrence is common. Metastasis from this tumor is all the more rare. The commonest site for metastasis is lung. Brain is a very uncommon site of involvement. Overall prognosis is good. We hereby discuss ameloblastoma of lower jaw in a young adult which had metastasized to brain. Patient was operated for the metastatic lesion of brain and is doing well on follow-up.
September 2016: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28190584/the-effects-of-m1-and-m2-macrophages-on-odontogenic-differentiation-of-human-dental-pulp-cells
#5
Hee Chul Park, Hongxuan Quan, Tingting Zhu, Yongjoon Kim, Bongju Kim, Hyeong-Cheol Yang
INTRODUCTION: M1 (classically activated) and M2 (alternatively activated) macrophages are known to play primary roles in inflammation and tissue regeneration. To investigate the role of macrophages in dentin regeneration, this study examined the effects of M1 and M2 macrophages on the odontogenic/osteogenic differentiation of human dental pulp cells (HDPCs) using the conditioned media (CM) of the activated human monocyte cell line THP-1. METHODS: M1 and M2 macrophages were induced by lipopolysaccharide/interferon-γ and interleukin-4, respectively, and the phenotypes were confirmed by flow cytometry...
February 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28187891/automated-classification-of-maxillofacial-cysts-in-cone-beam-ct-images-using-contourlet-transformation-and-spherical-harmonics
#6
Fatemeh Abdolali, Reza Aghaeizadeh Zoroofi, Yoshito Otake, Yoshinobu Sato
BACKGROUND AND OBJECTIVE: Accurate detection of maxillofacial cysts is an essential step for diagnosis, monitoring and planning therapeutic intervention. Cysts can be of various sizes and shapes and existing detection methods lead to poor results. Customizing automatic detection systems to gain sufficient accuracy in clinical practice is highly challenging. For this purpose, integrating the engineering knowledge in efficient feature extraction is essential. METHODS: This paper presents a novel framework for maxillofacial cysts detection...
February 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28174367/collagen-and-its-role-in-predicting-the-biological-behavior-of-odontogenic-lesions
#7
Pavan G Kulkarni, M Aruna Kumari, Abhishek Jahagirdar, Srk Nandan, Shyam Prasad Reddy D, M Keerthi
INTRODUCTION: Odontogenic cysts and tumors have variable recurrence rates. Recurrence rate is mainly due to the activity of the epithelium. The epithelium of these lesions has been investigated extensively in regard to their role in proliferative and aggressive behavior of the lesions. However, the role of the connective tissue wall in their behavior has not been studied as extensively. Collagen is an essential part of the connective tissue as a whole and fibrous wall of cystic lesions especially...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28160576/the-relative-frequency-of-odontogenic-tumors-a-study-of-376-cases-in-a-brazilian-population
#8
R Lima-Verde-Osterne, E Turatti, R Cordeiro-Teixeira, R Barroso-Cavalcante
BACKGROUND: Odontogenic tumors (OTs) are rare lesions, exclusive of the jaws, that are derived from epithelial and/or ectomesenchymal elements of the tooth-forming apparatus. Their biological behavior is heterogeneous, including hamartomatous tissue proliferation, benign nonaggressive and aggressive neoplasms, and malignant tumors with metastatic capacity. The aim of this study was to describe the relative frequency of odontogenic tumors in a Brazilian population. In addition, a review of the literature identified studies on odontogenic tumors that follow the 2005 World Health Organization...
February 4, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28153133/odontogenic-cysts-and-neoplasms
#9
REVIEW
Elizabeth Ann Bilodeau, Bobby M Collins
This article reviews a myriad of common and uncommon odontogenic cysts and tumors. The clinical presentation, gross and microscopic features, differential diagnosis, prognosis, and diagnostic pitfalls are addressed for inflammatory cysts (periapical cyst, mandibular infected buccal cyst/paradental cyst), developmental cysts (dentigerous, lateral periodontal, glandular odontogenic, orthokeratinized odontogenic cyst), benign tumors (keratocystic odontogenic tumor, ameloblastoma, adenomatoid odontogenic tumor, calcifying epithelial odontogenic tumor, ameloblastic fibroma and fibroodontoma, odontoma, squamous odontogenic tumor, calcifying cystic odontogenic tumor, primordial odontogenic tumor, central odontogenic fibroma, and odontogenic myxomas), and malignant tumors (clear cell odontogenic carcinoma, ameloblastic carcinoma, ameloblastic fibrosarcoma)...
March 2017: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/28149484/maxillary-peripheral-keratocystic-odontogenic-tumor-a-clinical-case-report
#10
María Del Carmen Vázquez-Romero, María de Los Angeles Serrera-Figallo, Javier Alberdi-Navarro, Javier Cabezas-Talavero, Manuel-María Romero-Ruiz, Daniel Torres-Lagares, Jose-Manuel Aguirre-Urizar, Jose-Luis Gutiérrez-Pérez
The keratocystic odontogenic tumor is a benign odontogenic cystic neoplasia characterized by its thin, squamous epithelium with superficial parakeratosis. It has the potential for infiltration and local aggressiveness and has a high rate of recurrence. This neoplasia is predominantly found in males and people of white origin. The mandible is the most frequently involved site, in particular the third molar region, mandibular angle, and ramus. It has a mandible-maxilla ratio of 2:1. Only about twenty cases of peripheral keratocystic odontogenic tumors (PKCOT) have been reported in the international literature...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28149478/immunoexpression-of-wnt-%C3%AE-catenin-signaling-pathway-proteins-in-ameloblastoma-and-calcifying-cystic-odontogenic-tumor
#11
Sabrina-Nogueira Dutra, Fábio-Ramôa Pires, Luciana Armada, Rebeca-Souza Azevedo
BACKGROUND: Wnt/β-catenin signaling pathway is essential for the beginning of odontogenesis and may be involved in the development and progression of some odontogenic tumors. Thus, the aim of this study was to comparatively evaluate the immunohistochemical expression of Wnt/β-catenin signaling pathway proteins in a series of AME and CCOT. MATERIAL AND METHODS: Immunohistochemical reactions were performed using antibodies against Wnt1, Wnt5a and β-catenin in 17 cases of solid AME and 6 cases of CCOT...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28142213/ameloblastoma-current-etiopathological-concepts-and-management
#12
Olajumoke A Effiom, Oladunni M Ogundana, Abdulwarith O Akinshipo, Sunday O Akintoye
Ameloblastoma is a benign odontogenic tumor of epithelial origin. It is locally aggressive with unlimited growth capacity and has a high potential for malignant transformation as well as metastasis. Ameloblastoma has no established preventive measures although majority of patients are between ages 30 to 60 years. Molecular and genetic factors that promote oncogenic transformation of odontogenic epithelium to ameloblastoma are strongly linked to dysregulation of multiple genes associated with mitogen activated protein kinase, sonic hedgehog and WNT/β-catenin signaling pathways...
January 31, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28123497/odontogenic-epithelial-proliferation-is-correlated-with-cox-2-expression-in-dentigerous-cyst-and-ameloblastoma
#13
Mohammed Amjed Alsaegh, Hitoshi Miyashita, Takahiro Taniguchi, Sheng Rong Zhu
Investigation of cyclooxygenase (COX)-2 in dentigerous cyst and ameloblastoma may help to improve understanding of the nature and behavior of odontogenic cysts and tumors, and in addition may eventually represent a definitive target for a pharmacological approach in the management of these lesions. The aim of this study was to evaluate COX-2 expression and its correlation with the proliferation of odontogenic epithelium in these lesions. Dentigerous cysts (n=16) and ameloblastomas (n=17) were evaluated. Detection of Ki-67 and COX-2 protein expression was conducted by immunohistochemistry...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28106699/association-between-odontoma-and-impacted-teeth
#14
Gaetano Isola, Marco Cicciù, Luca Fiorillo, Giovanni Matarese
Odontoma is considered to be the most common odontogenic tumor of the oral cavity. Most odontomas are asymptomatic and are discovered during routine radiographic investigations and can cause disturbances in the eruption of the teeth, most commonly delayed eruption or deflection. By a retrospective study design, demographic and clinical data regarding patients who presented odontomas from year 1995 to 2015 were obtained in order and the influence of active therapy on the dentition and on the treatment of impacted teeth was analyzed...
January 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28105148/ameloblastic-carcinoma-of-the-maxilla-a-case-report-and-an-updated-review-of-the-literature
#15
Alessandro Moro, Enrico Foresta, Giulio Gasparini, Sandro Pelo, Mario Forcione, Enrico Giuseppe Cristallini, Marco Toraldo, Cardarelli Lorenzo, Marco Falchi, Gianmarco Saponaro
Ameloblastic carcinoma (AC) is an uncommon malignant odontogenic tumor that can be difficult to differentiate from ameloblastoma and can arise directly as an undifferentiated lesion or from a pre-existing benign lesion. The current study presents a novel case of primary maxillary AC and review the literature on AC of the maxilla. The review of the literature indicates that secondary tumors and posterior localization are associated with a higher tendency for recurrence and, often, multiple recurrences. Surgical therapy, eventually followed by radiotherapy, is the treatment modality most frequently applied, while the role of chemotherapy remains unclear...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28099232/keratocystic-odontogenic-tumor-involving-the-orbital-apex
#16
Adam R Sweeney, Jasjit K Dillon, Christopher B Chambers
No abstract text is available yet for this article.
January 17, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28089322/a-central-giant-cell-granuloma-in-posterior-part-of-maxilla-a-case-report
#17
Priyanka Garg, Jinendra Jain, Nayana De, Kushal Chatterjee
INTRODUCTION: Central Giant Cell Granuloma (CGCG) is an intraosseous lesion consisting of cellular fibrous tissue that contains multiple foci of hemorrhage, aggregations of multinucleated giant cells and occasionally trabeculae of woven bone1. PRESENTATION OF CASE: we are presenting a case of Central Giant Cell Granuloma on Maxilla. Extra oral examination revealed a diffuse swelling on the left side of face causing slight obliteration of nasio - nasolabial labial fold resulting in facial asymmetry & Intraoral examination shows a purple expansile mass in the region of upper left 26, 27 and 28 edentulous areas...
November 17, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28089087/prevalence-profile-of-odontogenic-cysts-and-tumors-on-brazilian-sample-after-the-reclassification-of-odontogenic-keratocyst
#18
Filipe Jaeger, Mariana Saturnino de Noronha, Maiza Luiza Vieira Silva, Márcio Bruno Figueiredo Amaral, Soraya de Mattos Carmago Grossmann, Martinho Campolina Rebello Horta, Paulo Eduardo Alencar de Souza, Maria Cássia Ferreira de Aguiar, Ricardo Alves Mesquita
PURPOSE: The aim of this study was to evaluate the impact of the reclassification of odontogenic keratocyst (OKC) as a tumor on the prevalence profile of odontogenic cysts (OCs) and odontogenic tumors (OTs). STUDY DESIGN: Two referral Oral and Maxillofacial Pathology services in Brazil were evaluated. All cases diagnosed as OCs or OTs were selected and classified according to the 1992 WHO-classification (cases before 2005 WHO classification of tumors excluding OKC) and the 2005 WHO classification of tumors, going forward including cases of odontogenic keratocyst tumor (KCOT)...
December 18, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28060370/diagnosing-the-most-common-odontogenic-cystic-and-osseous-lesions-of-the-jaws-for-the-practicing-pathologist
#19
Robert A Robinson
Odontogenic cysts and osseous lesions are often seen as challenging diagnostic lesions but the majority of them are easily classified. This article outlines the diagnostic features required for separating the most common of odontogenic cysts and select osseous lesions of the jaws. Clinical and radiographic findings of these jaw lesions often lead to a differential diagnosis that only the histologic findings will clarify. Dentigerous cyst, keratocystic odontogenic tumor, and certain ameloblastomas that have cystic change, may have identical radiographic findings, with only separation by their specific histologic features leading to the significantly different treatments required for each...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28054463/kallikrein-related-peptidase-expression-in-odontogenic-cysts-and-tumors-an-immunohistochemical-comparative-study
#20
Mark Roger Darling, Rebecca Woodford, Karl Kevin Cuddy, Linda Jackson-Boeters, Alyssa Hayter, Jeyanth Inkaran, Eleftherios P Diamandis, Zia Khan
AIM: The aim of the present study was to profile the expression of human kallikrein (KLK)-related peptidases (KLK) in odontogenic lesions. METHODS: Paraffin-embedded, formalin-fixed, non-odontogenic (control) and odontogenic lesions were stained for KLK using a standard immunohistochemical technique. The intensity and proportion of epithelial cells stained was scored. Reverse transcription-polymerase chain reaction was utilized to evaluate KLK 1-15 mRNA expression in ameloblastomas...
January 4, 2017: Journal of Investigative and Clinical Dentistry
keyword
keyword
24756
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"