keyword
MENU ▼
Read by QxMD icon Read
search

Ameloblastoma

keyword
https://www.readbyqxmd.com/read/29670736/expression-of-parathyroid-hormone-related-protein-pthrp-in-ameloblastomas
#1
Rafael Zeballos, Ronell Bologna-Molina, Vanesa Pereira-Prado, Mariana Villarroel-Dorrego
Background: Presence of parathyroid hormone related protein (PTHrP) might suggest that ameloblastomas recapitulate features of the enamel epithelium and induce bone resorption, which would facilitate their growth and local invasion. The aim of this study was to determine the expression of PTHrP in ameloblastomas. Material and Methods: An observational research study was designed including 39 cases of histologically diagnosed ameloblastomas (39 out of 42 patients gave consent for the use of their medical records and all data required for this study)...
February 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29657523/comparison-of-osteoclastogenesis-and-local-invasiveness-of-ameloblastoma-and-keratocystic-odontogenic-tumor
#2
Natheer H Al-Rawi, Ammar K Al-Siraj, Ahlam H Majeed
Objectives: The aim of this study was to compare the expression of receptor-activated nuclear factor kappa B (RANK) with its ligand (RANKL) and matrix metalloproteinase-2 (MMP2) in solid/multicystic ameloblastomas (ABs) and keratocystic odontogenic tumors (KOTs). Materials and Methods: The expression of MMP2, RANK, and RANKL molecules was evaluated in 13 ABs and 14 KOTs by immunohistochemistry. The expressions were calculated in the odontogenic epithelial cells as well as the stromal cells...
January 2018: European Journal of Dentistry
https://www.readbyqxmd.com/read/29656899/long-term-outcome-of-patients-with-or-without-osseointegrated-implants-after-resection-of-mandibular-ameloblastoma-and-reconstruction-with-vascularized-bone-graft-functional-assessment-and-quality-of-life
#3
Marco Pappalardo, Chung-Kan Tsao, Man Lung Tsang, Jie Zheng, Yang-Ming Chang, Chi-Ying Tsai
BACKGROUND: The optimal management after the resection of mandibular ameloblastoma has been very challenging to surgeons. The aim of this study is to evaluate the functional, aesthetic, and quality of life outcomes of patients who had a segmental mandibular resection and immediate reconstruction with or without osseointegrated implants. METHOD: Patients' demographics, tumor characteristics, treatment, and complications were retrieved. Patients were divided into two groups: dental rehabilitated vs...
March 28, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29615183/basal-cell-ameloblastoma-of-mandible-a-case-with-proposed-diagnostic-criteria
#4
Manas Bajpai, Nilesh Pardhe
No abstract text is available yet for this article.
April 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29602688/egfr-is-not-amplified-in-ameloblastoma
#5
Victor Costa, Eduardo Rodrigues Fregnani, Felipe Paiva Fonseca, Fábio Abreu Alves, Clóvis Antônio Lopes Pinto, Estela Kaminagakura
OBJECTIVE: The aim of this study was to investigate alterations in the EGFR gene and its protein expression for a better understanding of the biologic behavior of ameloblastoma. STUDY DESIGN: Twenty-five samples of ameloblastoma were selected, and dual-color fluorescence in situ hybridization assay was performed. The results of the assay and immunohistochemistry reaction for EGFR and Ki67 were associated with clinicopathologic features and recurrence. RESULTS: All analyzed cases presented disomy without any gene polysomy or amplification...
March 6, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29577431/is-podoplanin-expression-associated-with-tgf-%C3%AE-signaling-in-odontogenic-cysts-and-tumors
#6
Shahroo Etemad-Moghadam, Mojgan Alaeddini
BACKGROUND: Induction of podoplanin by TGF-β has been shown in a number of lesions but not in odontogenic tumors (OTs). We evaluated the association between these markers in OTs for the first time and compared their expression among the different neoplasms. METHODS: Immunohistochemistry using monoclonal antibody against podoplanin and TGF-β was performed on 76 odontogenic cysts and tumors. Spearman's correlation coefficient, Kruskal-Wallis and Mann-Whitney-U tests followed by adjustment with Bonferroni were used for statistical analysis (P<0...
March 26, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29564405/orbital-invasion-of-ameloblastoma-a-systematic-review-apropos-of-a-rare-entity
#7
REVIEW
Mohammad-Ali Abtahi, Alireza Zandi, Hassan Razmjoo, Sara Ghaffari, Seyed-Mojtaba Abtahi, Hamidreza Jahanbani-Ardakani, Zahra Kasaei, Samira Kasaei-Koupaei, Sepideh Sajjadi, Seyed-Ali Sonbolestan, Seyed-Hossein Abtahi
Purpose: Ameloblastoma is a non-encapsulated and slow-growing tumor with high recurrence rate. Orbital involvement by this neoplasm is an extremely rare entity. In this study, we present a systematic review on this situation along with clinical and paraclinical features of a case. Methods: An electronic search was conducted on major medical sources. Data of the cases in the literature in addition to our own case were extracted, summarized, and statistically analyzed...
March 2018: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/29563362/difficulties-in-diagnosis-of-sialolithiasis-a-case-series
#8
Svitlana Veniaminivna Kolomiiets, Kristina Oleksandrivna Udaltsova, Tetiana Andriivna Khmil, Alina Mykolaiivna Yelinska, Olena Anatoliivna Pisarenko, Viktoriya Ihorivna Shynkevych
Sialolithiasis is one of the most common and extensively obstructive disorders of the major salivary glands. Here, we report 3 cases of sialolithiasis in the submandibular salivary gland showing symptomatic similarities to other dental and non-dental disorders of the maxillofacial area. How the various clinical features of this condition and findings on 3D-CT may lead to a misdiagnosis are also discussed. In the first case, that of a 45-year-old woman, a final diagnosis of a non-radiopaque submandibular sialolith allowed the initially indicated surgical extraction of a malerupted and semi-impacted right mandibular 3rd molar to be abandoned...
2018: Bulletin of Tokyo Dental College
https://www.readbyqxmd.com/read/29561396/bronchoscopically-treated-endobronchial-ameloblastoma-with-rapid-local-recurrence
#9
Kim C Styrvoky, Hsienchang T Chiu
No abstract text is available yet for this article.
April 2018: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/29559247/cox-2-as-a-determinant-of-lower-disease-free-survival-for-patients-affected-by-ameloblastoma
#10
Marco Aurélio Petroni Montezuma, Felipe Paiva Fonseca, Bernar Monteiro Benites, Ciro Dantas Soares, Gleyson Kleber do Amaral-Silva, Oslei Paes de Almeida, Fernando Augusto Soares, Rosana Lima Pagano, Eduardo Rodrigues Fregnani
Ameloblastoma is a locally aggressive neoplasm with a poorly understood pathogenesis. Therefore, the aim of this study is to investigate whether COX-2 expression is associated with ameloblastoma microvascular density (MVD) and with tumor aggressiveness. Sixty-three cases of primary ameloblastomas arranged in tissue microarray were submitted to immunohistochemistry against cyclooxigenase-2 (COX-2) and CD34. Clinicopathological parameters regarding sex, age, tumour size, tumour duration, tumour location, treatment, recurrences, radiographic features, vestibular/lingual and basal cortical disruption and follow-up data were obtained from patients' medical records and correlated with the proteins expression...
March 15, 2018: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29546640/molecular-defects-in-braf-wild-type-ameloblastomas-and-craniopharyngiomas-differences-in-mutation-profiles-in-epithelial-derived-oropharyngeal-neoplasms
#11
Stephan Bartels, Akinyele Adisa, Timothy Aladelusi, Juliana Lemound, Angelika Stucki-Koch, Sami Hussein, Hans Kreipe, Christian Hartmann, Ulrich Lehmann, Kais Hussein
The aim of this study was to evaluate the mutation profile of BRAF wild-type craniopharyngiomas and ameloblastomas. Pre-screening by immunohistochemistry and pyrosequencing for identifying BRAF wild-type tumors was performed on archived specimens of ameloblastic tumors (n = 20) and craniopharyngiomas (n = 62). Subsequently, 19 BRAF wild-type tumors (nine ameloblastic tumors and ten craniopharyngiomas) were analyzed further using next-generation sequencing (NGS) targeting hot spot mutations of 22 cancer-related genes...
March 15, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29544753/a-new-modified-method-for-accurate-mandibular-reconstruction
#12
Chengshuai Yang, Shunyao Shen, Jingyang Wu, Shilei Zhang
Mandibular reconstruction after partial or subtotal resection is considered a challenging procedure that is crucial for facial contour and function. Many reports regarding the reconstruction of mandibular defects have been published over the years. The fibula free flap has become a popular option for mandibular reconstruction since its introduction by Hidalgo in 1989. However, the locations of the reconstructed mandibular angle and the condyle of the fibular bone segments play a crucial role in facial symmetry and function...
February 20, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29496045/does-volumetric-measurement-serve-as-an-imaging-biomarker-for-tumor-aggressiveness-of-ameloblastomas
#13
Ali-Farid Safi, Martin Kauke, Marco Timmer, Andrea Grandoch, Hans-Joachim Nickenig, Elif Gültekin, Reinhard Büttner, Matthias Kreppel, Joachim Zöller
No abstract text is available yet for this article.
March 2018: Oral Oncology
https://www.readbyqxmd.com/read/29491600/hemangiomatous-ameloblastoma-case-report-with-a-brief-review
#14
Aparna Venigalla, Manasa Bojji, Soujanya Pinisetti, Suresh Babburi
Ameloblastoma is a benign epithelial odontogenic tumor with many histological variants. Hemangiomatous ameloblastoma (HA) is a very rare variant which shows unique histopathological features varying from conventional ameloblastoma. We present a case of a 35-year-old female patient with a swelling over right lower back region of jaw, showing mixed radiolucent-opacity. Incisional biopsy showed microscopic features of desmoplastic ameloblastoma showing extensive desmoplasia and compressed odontogenic epithelial islands...
January 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/29491596/ameloblastoma-arising-in-the-wall-of-dentigerous-cyst-report-of-a-rare-entity
#15
Sudheer Kanth Kondamari, Sravya Taneeru, Venkateswara Rao Guttikonda, Geetha Kumari Masabattula
Dentigerous cyst (DC) is a developmental odontogenic cyst that encloses the crown of an unerupted tooth by expansion of its follicle with accumulation of fluid between the reduced enamel epithelium and the tooth crown and is attached to the neck of the tooth. The lining of DCs shows a potential for neoplastic transformation to ameloblastoma, squamous cell carcinoma, and mucoepidermoid carcinoma. Here, we report a rare case of an ameloblastoma arising in the wall of a DC.
January 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/29480593/ameloblastoma-clinical-radiological-and-therapeutic-findings
#16
M Kreppel, J Zöller
Ameloblastoma are the most common odontogenic tumor. As they usually do not form metastasis, they are considered as benign tumors with a locally invasive growth pattern and destruction of the jaws and the surrounding tissue (Oral Diseases, 23, 2017, 199). This article focuses on clinical, radiological, and therapeutic findings, which may influence diagnosis and treatment of ameloblastoma in the future.
March 2018: Oral Diseases
https://www.readbyqxmd.com/read/29480235/3d-cone-beam-computed-tomography-reconstruction-images-in-diagnosis-of-ameloblastomas-of-lower-jaw-a-case-report-and-mini-review
#17
Dize Li, Zhiqiang Yang, Tao Chen, Chao Guan, Feilong Wang, Ethan L Matz, Yuanyuan Zhang, Ping Ji
Cone beam computed tomography (CBCT) has obvious advantages over regular radiography in diagnosis of complex diseases. Objective of this study is to report a case of a mandibular jaw ameloblastoma recurring cyst, which represents a benign tumor of odontogenic epithelium, using CBCT imaging technology. CBCT examination of the patient suffering with recurrent lower jaw cyst (relapsing four years after surgery) showed a decrease in irregular bone density and appearance of a honeycomb pattern (3.5 cm×2.5 cm×1...
2018: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/29476681/expression-of-hmlh1-and-hmsh2-proteins-in-ameloblastomas-and-tooth-germs
#18
R Bologna-Molina, V Pereira-Prado, C Sánchez-Romero, G Tapia-Repetto, S Soria, M Hernandez, R Gónzalez-Gónzalez, M Molina-Frechero, T Mikami
BACKGROUND: Mismatch repair proteins (MMRPs) are a group of nuclear enzymes that participate in the repair of base mismatches that occur during DNA replication in all proliferating cells. The most studied MMRPs are hMSH2 and hMLH1, which are known to be highly expressed in normal tissues. A loss of MMRPs leads to the accumulation of DNA replication errors in proliferating cells. Ki-67 is a biomarker regarded to be the gold-standard tool for determining cell proliferation by immunohistochemical methods...
February 24, 2018: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29476674/apoptosis-and-cell-cycle-aberrations-in-epithelial-odontogenic-lesions-an-evidence-by-the-expression-of-p53-bcl-2-and-bax
#19
J-R Tenório, T Santana, S-I-M-L Queiroz, D-H-I-P de Oliveira, L-M-G Queiroz
BACKGROUND: Ameloblastoma (AMB), odontogenic keratocyst (OKC) and adenomatoid odontogenic tumor (AOT) are epithelial odontogenic lesions with diverse biologic profiles. Defects in regulation of apoptosis and cell cycle may be involved in the development and progression of those lesions, therefore we aimed to investigate the expression of Bcl-2, Bax and p53 to better understand the possible role of these proteins in AMBs, OKCs and AOTs. MATERIAL AND METHODS: The studied sample consisted of 20 AMBs, 20 OKCs and 20 AOTs...
February 24, 2018: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29475080/partial-maxillectomy-for-ameloblastoma-of-the-maxilla-with-infratemporal-fossa-involvement-a-combined-endoscopic-endonasal-and-transoral-approach
#20
Anasuya Guha, Libor Hart, Helena Polachova, Martin Chovanec, Petr Schalek
BACKGROUND: Ameloblastoma represents the most common epithelial odontogenic tumor. Because of the proximity of the maxillary tumors to the orbit and skull base, it should be managed as radically as possible. Maxillectomy mainly via the transfacial or transoral approach represents the most common type of surgical procedure. Drawback of these approaches is limited control of the superiomedial extent of the tumour in the paranasal area. We report the use of a combined endoscopic endonasal and transoral approach to manage maxillary plexiform ameloblastoma in a 48 year old male patient...
February 20, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
keyword
keyword
36983
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"