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https://www.readbyqxmd.com/read/29113208/calcifying-cystic-odontogenic-tumor-accompanied-by-a-dentigerous-cyst-a-case-report
#1
Shoko Gamoh, Hironori Akiyama, Chisato Furukawa, Yuki Matsushima, Tomio Iseki, Masahiro Wato, Akio Tanaka, Shosuke Morita, Kimishige Shimizutani
A calcifying cystic odontogenic tumor (CCOT) is a proliferation of odontogenic epithelium and scattered nests of ghost cells and calcifications that may form the lining of a cyst, or present as a solid mass. It was previously described by Gorlin et al in 1962 as a calcifying odontogenic cyst. Dentigerous cysts are developmental odontogenic jaw cysts, commonly manifesting in the second and third decades of life. The present study reports an asymptomatic case in a 13-year-old boy who was referred to the outpatient clinic of the Osaka Dental University Hospital (Osaka, Japan) for additional investigation of an area of radiolucency in the lower right jaw...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29099370/metachronous-ameloblastic-fibro-odontoma-and-dentigerous-cyst-in-the-posterior-mandible
#2
Mário Rodrigues de Melo Filho, Sabina Pena Borges Pêgo, Claudio Marcelo Cardoso, Breno Amaral Rocha, Hercílio Martelli-Júnior, Isadora Luana Flores, Luis Antônio Nogueira Dos Santos, Livia Máris Ribeiro Paranaiba
An ameloblastic fibro-odontoma (AFO) is a rare mixed odontogenic tumor with histologic features of an ameloblastic fibroma in conjunction with the presence of dentin and enamel. It usually appears as a well-circumscribed radiolucency with radiopaque foci and slow growth and is commonly seen in children and young adults. A 13-year-old boy presented with an asymptomatic swelling in the posterior right region of the mandible and the right ascending ramus. The clinical, imaging, and histopathologic findings confirmed the diagnosis of an AFO...
November 2017: General Dentistry
https://www.readbyqxmd.com/read/29089838/bryophryne-phuyuhampatu-sp-n-a-new-species-of-cusco-andes-frog-from-the-cloud-forest-of-the-eastern-slopes-of-the-peruvian-andes-amphibia-anura-craugastoridae
#3
Alessandro Catenazzi, Alex Ttito, M Isabel Diaz, Alexander Shepack
A new species of Bryophryne from the humid montane forest of the Department of Cusco, Peru, is described. Specimens were collected at 2795-2850 m a.s.l. in the Área de Conservación Privada Ukumari Llaqta, Quispillomayo valley, in the province of Paucartambo. The new species is readily distinguished from all other species of Bryophryne by having green coloration on dorsum, and blue flecks on flanks and ventral parts. Specimens are characterized by lacking a distinct tympanic annulus, tympanic membrane, and dentigerous processes of vomers, and by having dorsal skin shagreen, discontinuous dorsolateral folds, skin tuberculate on flanks, skin areolate on ventral surfaces of the body, and fingers and toes without lateral fringes or webbing...
2017: ZooKeys
https://www.readbyqxmd.com/read/29075422/marsupialization-of-a-large-dentigerous-cyst-in-the-mandible-with-orthodontic-extrusion-of-three-impacted-teeth-a-case-report
#4
Nedal Abu-Mostafa, Arshad Abbasi
The dentigerous cyst (DC) is the most common type of developmental odontogenic cyst. It is usually asymptomatic and associated with the crown of an unerupted or impacted tooth. However, after a long duration, it is likely to cause significant bone resorption, cortical expansion, and tooth displacement. This report presents a large infected DC in the mandible of a 12-year-old female patient. The DC was located inferior to badly decayed primary molars and surrounded three impacted permanent teeth: canine, first premolar, which had a dilacerated root, and second premolar...
September 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29053755/micrornas-expression-profile-in-solid-and-unicystic-ameloblastomas
#5
A Setién-Olarra, X Marichalar-Mendia, N G Bediaga, P Aguirre-Echebarria, J M Aguirre-Urizar, A Mosqueda-Taylor
OBJECTIVES: Odontogenic tumors (OT) represent a specific pathological category that includes some lesions with unpredictable biological behavior. Although most of these lesions are benign, some, such as the ameloblastoma, exhibit local aggressiveness and high recurrence rates. The most common types of ameloblastoma are the solid/multicystic (SA) and the unicystic ameloblastoma (UA); the latter considered a much less aggressive entity as compared to the SA. The microRNA system regulates the expression of many human genes while its deregulation has been associated with neoplastic development...
2017: PloS One
https://www.readbyqxmd.com/read/28988429/homozygous-indel-mutation-in-cdh11-as-the-probable-cause-of-elsahy-waters-syndrome
#6
Ekim Z Taskiran, Beren Karaosmanoglu, Can Koşukcu, Özlem A Doğan, Hande Taylan-Şekeroğlu, Pelin Ö Şimşek-Kiper, Eda G Utine, Koray Boduroğlu, Mehmet Alikaşifoğlu
Two sisters from a consanguineous couple were seen in genetics department for facial dysmorphic features and glaucoma. They both had broad foreheads, hypertelorism, megalocorneas, thick eyebrows with synophrys, flat malar regions, broad and bulbous noses, and mild prognathism. Both had glaucoma, younger one also had cataracts and phthisis bulbi. Other findings included bilateral partial cutaneous syndactyly of 2nd and 3rd fingers, history of impacted teeth with dentigerous cyst in the elder one, and intellectual disability (mild and borderline)...
December 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28975115/primary-intraosseous-squamous-cell-carcinoma-in-a-dentigerous-cyst
#7
Karthika Panneerselvam, Anantanarayanan Parameswaran, B Kavitha, Elavenil Panneerselvam
No abstract text is available yet for this article.
July 2017: South Asian Journal of Cancer
https://www.readbyqxmd.com/read/28946726/management-of-a-dentigerous-cyst-in-a-child-with-robin-sequence
#8
Shayda Mirhaidari, Ananth Murthy
This is a brief clinical report describing an 18-month-old female with Robin sequence found to have an incidental mandibular cystic lesion on a head computed tomography scan in the preoperative workup before performing mandibular distraction. She underwent enucleation of the tumor, which was found to be a dentigerous cyst. One year following cyst enucleation, mandibular distraction was performed in order to alleviate her tongue-based obstruction. This case demonstrates the ability of the mandibular bone to successfully regenerate after undergoing cyst enucleation...
September 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28932033/glandular-odontogenic-cyst-series-of-five-cases
#9
Aadithya B Urs, Priya Kumar, Jeyaseelan Augustine, Rewa Malhotra
INTRODUCTION: Glandular odontogenic cyst (GOC) is a clinically rare and histopathologically unusual type of developmental odontogenic cyst with unpredictable and potentially aggressive behaviour. MATERIALS AND METHODS: Archival data of cases histopathologically identified as GOC were analyzed from the Department of Oral Pathology over the past six years. The clinical, radiographic, histopathological features and treatment were evaluated. Special stains such as periodic acid Schiff, mucicarmine along with immunohistochemical staining for cytokeratin 19 were employed to confirm the histopathological diagnosis...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28931192/markers-of-proliferation-and-cytokeratins-in-the-differential-diagnosis-of-jaw-cysts
#10
Nikola D Živković, Dragan S Mihailović, Miloš S Kostić, Ana S Cvetanović, Žaklina Ž Mijović, Maja V Milentijević, Tijana V Denčić
We conducted a retrospective study to analyze the histologic and immunohistochemical findings in three main types of odontogenic cyst. We studied 90 archived cystic jaw lesions: 30 dentigerous cysts, 30 keratocystic odontogenic tumors, and 30 radicular cysts. The cyst types were identified on the basis of clinical, radiologic, and histopathologic findings. Immunohistochemical analyses included staining with Ki-67, p53, epidermal growth factor receptor (EGFR), cytokeratin (CK) 8, CK14, CK17, and CK18. Cell immunopositivity was evaluated for the entire epithelium...
September 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28893057/coincidental-finding-of-twin-dentigerous-cyst-in-an-achondroplasia-patient
#11
Mammootty Imthy Keloth, Abdul Akbar, Laxmikanth Chatra, Vagish Kumar L Shanbhag, Prashanth Shenai
No abstract text is available yet for this article.
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28890627/role-of-cone-beam-computed-tomography-in-evaluation-of-radicular-cyst-mimicking-dentigerous-cyst-in-a-7-year-old-child-a-case-report-and-literature-review
#12
B S Mahesh, Shilpa P Shastry, Padmashree S Murthy, T R Jyotsna
AIM: To report a rare case of large radicular cyst-associated deciduous tooth and to discuss the importance of cone beam computed tomography (CBCT) in diagnosing the condition. BACKGROUND: Radicular cyst is the most common cyst affecting the permanent teeth, but its occurrence in deciduous teeth is rare. Most of the radicular cysts are asymptomatic and are discovered accidentally when radiographs are taken. Conventional radiographs show two-dimensional images of three-dimensional objects...
April 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28791984/odontogenic-and-nonodontogenic-cysts-an-analysis-of-526-cases-in-turkey
#13
A Kilinc, B Gundogdu, N Saruhan, E Yalcin, U Ertas, G Urvasizoglu
PURPOSE: The aim of this study was to determine the age, gender, and sites of different types of odontogenic cysts (OCs) and non-OCs (nOCs) (seen in eastern Anatolian population in Turkey. MATERIALS AND METHODS: The following data were collected from the clinical records and histopathology reports of the Department of Oral and Maxillofacial Surgery and the Department of Oral Pathology, Ataturk University, Turkey, during a period of 10 years. They were analyzed descriptively in terms of incidence, age, sex, cyst type, and site...
July 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28762355/bismuth-subnitrate-iodoform-parafin-paste-used-in-the-management-of-inflammatory-follicular-cyst-report-of-two-cases
#14
Abdul Morawala, Dayanand Shirol, Yusuf Chunawala, Nupur Kanchan, Mayuri Kale
Dentigerous cyst or follicular cyst is a type of odontogenic cyst which encloses the crown of an unerupted tooth and is attached to the amelocemental junction and is the second most common odontogenic cyst contributing about 16.6% to 21.3% of all odontogenic cysts. Occurrence of Dentigerous cysts according to Shear is usually in 3rd and 4th decade in contrast to this finding Shibata et al showed that the age of discovery of the dentigerous cyst was generally 9-11 years. The treatment indicated for dentigerous cysts are surgical enucleation of the cyst, along with removal of the involved tooth; or the use of a marsupialization technique, which removes the cyst while preserving the developing tooth...
July 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28751089/significant-association-of-high-grade-inflammation-and-thick-lining-epithelium-with-the-increased-number-of-langerhans-cells-in-dentigerous-cysts
#15
Chun-Han Chang, Yang-Che Wu, Yu-Hsueh Wu, Andy Sun, Shih-Jung Cheng, Hsin-Ming Chen
BACKGROUND/PURPOSE: Langerhans cells (LCs) are antigen-presenting cells. This study assessed the LC counts in 80 dentigerous cysts (DCs). METHODS: The CD1a-positive LC numbers in the lining epithelia and subepithelial connective tissues were counted at 80 DC sites without inflammation, 33 DC sites with mild/moderate inflammation, and 9 DC sites with severe inflammation from 80 DC specimens. RESULTS: The mean LC counts in the lining epithelia and subepithelial connective tissues increased significantly from no inflammation (0...
November 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28721991/angiogenesis-concept-in-odontogenic-keratocyst-a-comparative-study
#16
Donia Sadri, Fatemeh Shahsavari, Sareh Farhadi, Zahra Shahabi, Zahra Mehran
CONTEXT: Recent reports have indicated that angiogenesis possibly affects the biologic behavior of the lesions. AIM: Given the different clinical behaviors of odontogenic keratocyst (OKC), the present study was undertaken to evaluate the concept of angiogenesis in pathogenesis and clinical behavior of OKC. SETTING AND DESIGN: This experimental study was carried out on 22 and 24 samples of OKCs and dentigerous cysts (DCs), respectively. METHODS: Immunohistochemical staining was approached using CD34 and vascular endothelial growth factor (VEGF) antibodies...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28706782/immunohistochemical-evaluation-of-podoplanin-in-odontogenic-tumours-cysts-using-anti-human-podoplanin-antibody
#17
Namrata Singhal, Nitin Khanduri, Deepak Kurup, Brijesh Gupta, Pranjan Mitra, Roshani Chawla
BACKGROUND: Odontogenic Cysts & tumors originate through some aberration from the normal pattern of odontogenesis. Ameloblastoma is one of the most frequent intraosseous odontogenic tumors. However it is no longer appropriate to use the diagnosis of ameloblastoma without specifying the type. Varied-clinical entities of ameloblastoma differ in their biologic behaviour. Odontogenic cysts like dentigerous and radicular cysts are less aggressive in nature than odontogenic tumors. Recently, podoplanin commonly used as a lymphatic endothelial marker in cancers has recently been found to play a possible role in odontogenic tumorigenesis also...
May 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28656918/study-of-kissing-molars-in-turkish-population-sample
#18
S Yanik, F Ayranci, Ö İşman, Ş Büyükçikrikci, M H Aras
BACKGROUND: "Kissing" or "rosetting" of molars are extremely rare phenomenon with limited cases in the dental literature. It was first described in 1973, refers to contacting occlusal surfaces of the impacted mandibular second and third molars. The aim of the present study was to report the incidence of kissing molars (KMs), classification, incorporated pathologies, and its management in a group of Turkish population. MATERIALS AND METHODS: The panoramic radiographs of the patients who referred to Gaziantep University Faculty of Dentistry between January 2012 and November 2014 for surgical treatment retrospectively were evaluated...
June 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28610931/can-cyst-volume-be-used-to-stratify-risk-of-complications-following-cyst-defect-reconstruction-with-iliac-crest-graft
#19
Ali-Farid Safi, Andrea Grandoch, Timo Dreiseidler, Hans-Joachim Nickenig, Joachim Zöller, Matthias Kreppel
INTRODUCTION: The role of the volume of radicular and dentigerous cysts on clinical symptoms is unclear and potentially may predict development of pre- and postoperative complications, especially after cystectomies with large bony defects. Therefore the aim of this study was to assess pre- and postoperative symptoms associated to the volume of jaw cysts. MATERIAL AND METHODS: Retrospective chart review of 111 patients with follicular or dentigerous cysts from 2008-2012...
August 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28584604/p53-protein-expression-in-dental-follicle-dentigerous-cyst-odontogenic-keratocyst-and-inflammatory-subtypes-of-cysts-an-immunohistochemical-study
#20
Mashhadiabbas Fatemeh, Arab Sepideh, Bagheri Seyedeh Sara, Mahdavi Nazanin
OBJECTIVES: An odontogenic keratocyst (OKC) is a developmental odontogenic cyst with aggressive clinical behavior. This cyst shows a different growth mechanism from the more common dentigerous cyst and now has been renamed as a keratocystic odontogenic tumor (KCOT). Inflammation can assist tumor growth via different mechanisms including dysregulation of the p53 gene. This study aims to assess and compare the expression of tumor suppressor gene p53 in inflamed and non-inflamed types of OKC and dentigerous cyst...
May 2017: Oman Medical Journal
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