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Gerodontology Mar 2019Capnocytophaga spp are Gram-negative bacteria that cause severe infections in immunosuppressed patients. This situation is extremely rare in immunocompetent patients.
INTRODUCTION
Capnocytophaga spp are Gram-negative bacteria that cause severe infections in immunosuppressed patients. This situation is extremely rare in immunocompetent patients.
CASE REPORT
This clinical report describes the unusual infection of an immunocompetent patient with Capnocytophaga spp. The imaging studies showed the existence of a cyst in the left jawbone. After treatment and a microbiological study of the content, it was found to be an outbreak of septicaemia.
DISCUSSION
Capnocytophaga spp, commensal bacteria of the oral cavity, can lead to serious illness and that is why an empirical treatment is needed until a diagnostic confirmation can be obtained.
Topics: Aged; Blood; Capnocytophaga; Gram-Negative Bacterial Infections; Humans; Male; Odontogenic Cysts; Radiography; Sepsis; Shock, Septic; Superinfection
PubMed: 30216521
DOI: 10.1111/ger.12371 -
Orvosi Hetilap Dec 2020Összefoglaló. A Gorlin-Goltz-szindróma - más néven naevoid basalsejtes carcinoma szindróma - egy ritka, viszont számos orvosi társszakmát érintő, rendkívül... (Review)
Review
Összefoglaló. A Gorlin-Goltz-szindróma - más néven naevoid basalsejtes carcinoma szindróma - egy ritka, viszont számos orvosi társszakmát érintő, rendkívül változatos megjelenésű és genetikailag is heterogén betegség. Bár a tudományos kutatások egyik kedvenc területe, az aránylag alacsony betegszám, valamint a genotípus és a fenotípus közötti, igen komplex összefüggések miatt a kórképről meglévő ismereteink még nem teljesek. A témában megjelent nemzetközi és magyar nyelvű publikációk jelentős része esetközlésekre és a szindróma általános ismertetésére szorítkozik. A közlemény célja, hogy áttekintést adjon a szindróma genetikai vonatkozásairól. A nemzetközi és a magyar nyelvű szakirodalom áttanulmányozását végeztük. A naevoid basalsejtes carcinoma szindróma genetikai hátterének, az egyelőre azonosítatlan örökletes tényezőknek pontos megismerése még várat magára. A genetikai vizsgálatok a szindróma pontosabb megértéséhez, könnyebb diagnosztizálásához, a pozitív családtervezéshez és a személyre szabott terápiákhoz is hozzájárulhatnak. Orv Hetil. 2020; 161(49): 2072-2077. Summary. Gorlin-Goltz syndrome, or nevoid basal cell carcinoma syndrome, is a rare disease that requires multidisciplinary approach in patient management. The disease is genetically heterogenous and has an extremely variable expressivity. Although the syndrome is in the focus of scientific research, our knowledge of it is still limited due to the relatively low number of recognised patients and the complexity of genotype-phenotype correlation. Several papers in this field have been published in the international and also in the Hungarian literature but most of these reports are single cases or small case series of families and outline general information about the disease. Authors aimed to review the literature of the syndrome and to report the genetic background and its role in the diagnosis and treatment. A review of the English and Hungarian literature was performed. The full genetic background of the syndrome is not yet discovered. Increasing the awareness of the syndrome, collecting and thoroughly analysing the medical records and performing genetic tests on the patients may lead to the better understanding of the disease; they may also help early diagnosis and treatment, positive family planning and may establish personalized medicine. Orv Hetil. 2020; 161(49): 2072-2077.
Topics: Basal Cell Nevus Syndrome; Carcinoma, Basal Cell; Humans; Hungary; Interdisciplinary Research; Odontogenic Cysts; Rare Diseases
PubMed: 33279882
DOI: 10.1556/650.2020.31933 -
International Dental Journal Feb 2023Odontogenic lesions evolve as a result of altered dental development. This study aimed to evaluate the prevalence and the coinfection of Epstein-Barr virus (EBV) and...
OBJECTIVES
Odontogenic lesions evolve as a result of altered dental development. This study aimed to evaluate the prevalence and the coinfection of Epstein-Barr virus (EBV) and Kaposi sarcoma-associated herpesvirus (KSHV) in radicular cysts, dentigerous cysts, odontogenic keratocysts, and ameloblastomas.
METHODS
Polymerase chain reaction (PCR) was used to analyse 66 cases of odontogenic lesions for the presence of EBV-DNA and KSHV-DNA. These lesions were 15 radicular cysts, 16 dentigerous cysts, 18 odontogenic keratocysts, and 17 ameloblastomas.
RESULTS
EBV-DNA was detected in 24 (36.4%) of the studied samples as follows: 6 samples (40.0%) of radicular cysts, 4 (25.0%) of dentigerous cysts, 10 (55.6 %) of odontogenic keratocysts, and 4 (23.5%) of ameloblastomas (P = .168). KSHV-DNA was found in 16 (24.2%) of the studied samples as follows: 1 sample (6.7%) of radicular cysts, 6 (37.5%) of dentigerous cysts, 8 (44.4 %) of odontogenic keratocysts, and 1 (5.9%) of ameloblastomas (P = .001). Additionally, EBV and KSHV were positively correlated in all studied samples (P = .002).
CONCLUSIONS
Both EBV and KSHV are found in odontogenic cysts and ameloblastomas. KSHV and EBV are more prevalent in odontogenic keratocysts than in other studied odontogenic lesions. Further, there is a high prevalence of EBV and KSHV coinfection in odontogenic cysts and ameloblastomas.
Topics: Humans; Ameloblastoma; Coinfection; Dentigerous Cyst; DNA; Epstein-Barr Virus Infections; Herpesvirus 4, Human; Herpesvirus 8, Human; Odontogenic Cysts; Prevalence; Radicular Cyst; Sarcoma, Kaposi
PubMed: 35907672
DOI: 10.1016/j.identj.2022.06.028 -
F1000Research 2022Various stemness markers (SOX2, OCT4, and NANOG) have been studied in odontogenic cysts and tumors. However, studies on SALL4 having similar properties of stemness has...
BACKGROUND
Various stemness markers (SOX2, OCT4, and NANOG) have been studied in odontogenic cysts and tumors. However, studies on SALL4 having similar properties of stemness has not been documented. Additionally, insight into fascin as a migratory molecule is less explored. In this study, the expression of SALL4 and fascin were evaluated in ameloblastoma, adenomatoid odontogenic tumor (AOT), odontogenic keratocyst (OKC), dentigerous cyst (DC), radicular cyst (RC), and calcifying odontogenic cyst (COC).
METHODS
Semi-quantitative analysis of fascin and SALL4 immuno-positive cells was done in a total of 40 cases of ameloblastoma (11 plexiform, 12 follicular, 12 unicystic, and 5 desmoplastic) variants, 6 cases of AOT, 15 each of OKC, DC, RC and 5 of COC. Chi-square test was applied to evaluate the association between SALL4 and fascin expression in odontogenic cysts and tumors.
RESULTS
Fascin immunopositivity was observed in peripheral ameloblast-like cells, and weak or absent in stellate reticulum-like cells. A moderate to weak immune-reactivity to SALL4 was observed in the cytoplasm of ameloblastoma, epithelial cells of dentigerous and radicular cysts, having a marked inflammatory infiltrate, which is an interesting observation. COC and AOT had negative to weak expressions. No recurrence has been reported.
CONCLUSIONS
Expression of fascin in ameloblastomas elucidate their role in motility and localized invasion. Its expression in less aggressive lesions like DC, COC, AOT will incite to explore the other functional properties of fascin. SALL4 expression in the cytoplasm of odontogenic cysts and tumors may represent inactive or mutant forms which requires further validation.
Topics: Humans; Transcription Factors; Microfilament Proteins; Odontogenic Cysts; Carrier Proteins; Immunohistochemistry; Ameloblastoma; Odontogenic Tumors; Biomarkers, Tumor
PubMed: 38895097
DOI: 10.12688/f1000research.126091.3 -
Journal of Cranio-maxillo-facial... Dec 2021The odontogenic keratocyst (OKC) is a potentially aggressive odontogenic lesion and there is an ongoing debate regarding its biological behavior and classification. The... (Meta-Analysis)
Meta-Analysis Review
The odontogenic keratocyst (OKC) is a potentially aggressive odontogenic lesion and there is an ongoing debate regarding its biological behavior and classification. The present systematic review aims to assess the expression of the p53 protein in the odontogenic keratocyst in comparison to the dentigerous cyst and ameloblastoma. We searched MEDLINE, Web of Science and Scopus for immunohistochemical studies reporting OKC's, dentigerous cysts and solid/multicystic ameloblastomas. The Risk Difference between the lesions expressing the p53 was the effect measure and a P value < 0.05 was considered to provide evidence to the effect estimates. Results: The first hit retrieved 126 records. After duplicates removal, there were 84 articles, of which eighteen were assessed for eligibility. Thirteen articles were included in the meta-analysis, showing that OKC's have an estimated difference of 23% (P < 0.003) in the probability to express the p53 over dentigerous cysts, and an estimated difference of 4% (P = 0.28) in the probability to express the p53 over ameloblastomas. OKCs seem to behave more similarly to a tumor rather than an odontogenic cyst regarding its p53 expression and the classification of this lesion into Keratocystic Odontogenic Tumor should be carefully revaluated.
Topics: Ameloblastoma; Dentigerous Cyst; Humans; Jaw Neoplasms; Odontogenic Cysts; Odontogenic Tumors; Tumor Suppressor Protein p53
PubMed: 34620539
DOI: 10.1016/j.jcms.2021.09.015 -
Journal of the College of Physicians... Nov 2014A 12 years old girl was presented with bilateral swellings on angle and body of mandible. On general physical examination, there were polydactyly and papular lesions on...
A 12 years old girl was presented with bilateral swellings on angle and body of mandible. On general physical examination, there were polydactyly and papular lesions on arm. Histopathology of mandibular lesions revealed odontogenic keratocysts. Marsupialization of the cysts followed by enucleation was done. The patient was reviewed every six months and there was no recurrence at the end of two years.
Topics: Basal Cell Nevus Syndrome; Child; Female; Humans; Mandible; Neoplasm Recurrence, Local; Odontogenic Cysts; Radiography; Treatment Outcome
PubMed: 25518761
DOI: No ID Found -
Oral Oncology Sep 2017The first step towards the prevention of cancer is to develop an in-depth understanding of tumourigenesis and the molecular basis of malignant transformation. What... (Review)
Review
The first step towards the prevention of cancer is to develop an in-depth understanding of tumourigenesis and the molecular basis of malignant transformation. What drives tumour initiation? Why do most benign tumours fail to metastasize? Oncogenic mutations, previously considered to be the hallmark drivers of cancers, are reported in benign cysts and tumours, including those that have an odontogenic origin. Despite the presence of such alterations, the vast majority of odontogenic lesions are benign and never progress to the stage of malignant transformation. As these lesions are likely to develop due to developmental defects, it is possible that they harbour quiet genomes. Now the question arises - do they result from DNA replication errors? Specific candidate genes have been sequenced in odontogenic lesions, revealing recurrent BRAF mutation in the case of ameloblastoma, KRAS mutation in adenomatoid odontogenic tumours, PTCH1 mutation in odontogenic keratocysts, and CTNNB1 (Beta-catenin) mutation in calcifying odontogenic cysts. Studies on these benign and rare entities might reveal important information about the tumorigenic process and the mechanisms that hinder/halt neoplastic progression. This is because the role of relatively common oncogenic mutations seems to be context dependent. In this review, each mutation signature of the odontogenic lesion and the affected signalling pathways are discussed in the context of tooth development and tumorigenesis. Furthermore, behavioural differences between different types of odontogenic lesions are explored and discussed based on the molecular alteration described. This review also includes the employment of molecular results for guiding therapeutic approaches towards odontogenic lesions.
Topics: Humans; Mutation; Odontogenic Cysts; Odontogenic Tumors; Oncogenes; Signal Transduction
PubMed: 28797453
DOI: 10.1016/j.oraloncology.2017.07.021 -
The Journal of Craniofacial Surgery May 2022Although pathology in the maxillary and mandibular bones is rare in young patients, the differential diagnosis is broad. The World Health Organization (WHO) updated its...
BACKGROUND
Although pathology in the maxillary and mandibular bones is rare in young patients, the differential diagnosis is broad. The World Health Organization (WHO) updated its classification of maxillofacial bone pathology in 2017. Using these updated guidelines, a systematic review of common maxillofacial bone lesions in the pediatric population was performed.
METHODS
A PubMed search was conducted capturing English language articles from inception to July 2020. Thirty-one articles were identified that described the frequency of maxillofacial bone pathology. Data were extracted and organized using the WHO 2017 classification of odontogenic and maxillofacial bone tumors. Prevalence data were analyzed among diagnostic categories and geographical regions. The SAS version 9.4 was used to complete statistical analyses.
RESULTS
The articles included patients from birth to a maximum age of 14 to 19 years. The most common odontogenic cysts included radicular cyst (42.7%) and dentigerous cyst (39.0%) followed by odontogenic keratocyst (15.0%). Among odontogenic bone tumors, odontoma (49.3%) was most common followed by ameloblastoma (29.1%). The most common nonodontogenic bone tumor was fibrous dysplasia (42.4%), and the most common malignant bone tumor was osteosarcoma (75.0%). Significant variations were found by geographic region, with dentigerous cyst more common than radicular cyst, and ameloblastoma more common than odontoma in African and Asian countries (P < 0.0001).
CONCLUSIONS
This systematic review uses the WHO 2017 guidelines to classify common odontogenic and nonodontogenic maxillofacial bone lesions around the world. Pathogenesis, presentation, and available treatment options for the most common maxillofacial bone lesions are reviewed.
Topics: Adolescent; Adult; Ameloblastoma; Child; Dentigerous Cyst; Humans; Odontogenic Cysts; Odontogenic Tumors; Odontoma; Radicular Cyst; Young Adult
PubMed: 34560739
DOI: 10.1097/SCS.0000000000008201 -
Diagnostic Pathology Apr 2019Orthokeratinized Odontogenic Cyst (OOC) is a rare, developmental odontogenic cyst which was considered in the past to be a variant of Odontogenic keratocyst (OKC) later...
BACKGROUND
Orthokeratinized Odontogenic Cyst (OOC) is a rare, developmental odontogenic cyst which was considered in the past to be a variant of Odontogenic keratocyst (OKC) later renamed as keratocystic odontogenic tumor (KCOT). The treatment of OOC is by enucleation and the prognosis, following enucleation is excellent with a recurrence rate of less than 2%. On the other hand, OKC has a recurrence rate between 8 and 25% after enucleation. Thus it is important to differentiate between the two entities.
METHODS
All cases reported in our section as OOC during the period 2013 to 2018 were retrieved from the surgical pathology files and slides were reviewed by the authors. All cases which met the histological criteria for OOC were included.
RESULTS
A total of 10 cases were included. 70% patients were males, ages ranged from 23 to 60 years, with mean age of 38.9 years. 70% of cases were located in the mandible and 90% patients presented with swelling. Radiologically, 90% cases were unilocular, all were radiolucent lesions. Mean size was 4.0 cm. Histologically, all cases demonstrated the classic microscopic features. Follow-up was available in 8 patients. All were treated by enucleation. All 8 were alive with no recurrences over a follow-up period ranging from 7 to 62 months.
CONCLUSIONS
OOC has a better prognosis than OKC and needs to be differentiated from OKC due to differences in treatment and prognosis. Large majority of our cases presented with swelling and occurred in the mandibles of young males. All were radiolucent and most were unilocular. All were treated by enucleation and no recurrences occurred over follow up period ranging up to 62 months. Our findings were similar to those described in other published series.
Topics: Adult; Female; Humans; Male; Middle Aged; Odontogenic Cysts; Odontogenic Tumors; Radiography; Young Adult
PubMed: 30947718
DOI: 10.1186/s13000-019-0801-9 -
Journal of Endodontics Mar 2022Radiolucent lesions with gingival swelling found in the premolar and intercanine region can elicit a different clinical diagnosis than one confirmed by histologic...
INTRODUCTION
Radiolucent lesions with gingival swelling found in the premolar and intercanine region can elicit a different clinical diagnosis than one confirmed by histologic findings. The purpose of the study is to identify and present the frequency of the unexpected microscopic diagnosis of odontogenic keratocyst (OKC) in a location preoperatively favoring a lateral periodontal cyst (LPC) with similar clinical and radiographic appearance.
METHODS
A retrospective analysis of biopsies received from 2011 and 2019 was performed, and the number of LPC and OKC cases was assessed. The alignment of clinical and radiographic diagnosis to histologic findings and anatomic location was analyzed, and the number of OKC cases preoperatively misdiagnosed as LPCs was identified.
RESULTS
A total of 79,257 biopsies were received. Of those, 184 were diagnosed as LPCs and 742 as OKCs. For all preoperatively diagnosed LPCs, the clinical and histologic diagnosis aligned; however, 182 of 742 OKCs were submitted with a clinical misdiagnosis of LPCs. The location of these lesions with the unanticipated diagnosis overlapped with those for LPCs, specifically the maxillary and mandibular anterior and premolar regions.
CONCLUSIONS
Radiolucent lesions with gingival swelling in the premolar and intercanine region are frequently clinically and radiographically misdiagnosed. A biopsy should be considered in all cases to establish the correct pathologic diagnosis and treatment course.
Topics: Bicuspid; Diagnostic Errors; Humans; Odontogenic Cysts; Periodontal Cyst; Retrospective Studies
PubMed: 34922990
DOI: 10.1016/j.joen.2021.11.010