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Mohanty S, Bansal N, Verma A, Urs AB. Mandibular primary intraosseous carcinoma arising from long-standing odontogenic keratocyst. Oral Surg Oral Med Oral Pathol Oral Radiol 2024; 137:e8-e15. [PMID: 38155014 DOI: 10.1016/j.oooo.2023.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 12/30/2023]
Abstract
Primary intraosseous carcinoma (PIOC) of the jaw is a rare neoplasm arising from the lining epithelium of odontogenic cysts or de novo from odontogenic epithelial rests that has no communication with the surrounding mucosa of the upper aerodigestive tract. We present a case of PIOC ex-odontogenic keratocyst (PIOC ex-OKC) in a 35-year-old male. Histopathologic examination revealed a cystic lesion with a fibrous capsule lined by corrugated parakeratinized stratified squamous epithelium resting on a basal cell layer composed of columnar cells exhibiting palisaded hyperchromatic nuclei, features consistent with OKC. Surgical treatment consisted of bilateral crestal and crevicular incision, a reflection of the flap, breaking of all OKC locules, creation of a continuous cavity, and fitting of a decompression mold around the mandibular teeth. This case highlights the importance of knowing the features of PIOC and considering PIOC in the differential diagnosis of malignant tumors of odontogenic epithelium for timely surgical treatment.
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Affiliation(s)
- Sujata Mohanty
- Department of Oral and Maxillofacial Surgery, Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, New Delhi - 110002, India.
| | - Neeraj Bansal
- Department of Oral and Maxillofacial Surgery, Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, New Delhi - 110002, India.
| | - Anjali Verma
- Department of Oral and Maxillofacial Surgery, Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, New Delhi - 110002, India.
| | - Aadithya B Urs
- Department of Oral and Maxillofacial Pathology, Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, New Delhi - 110002, India.
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Li J, Jiang EH, Jiang SC, Liu B, Xiong XP, Sun YF, Deng WW. A retrospective study of the malignant change of odontogenic keratocyst. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101466. [PMID: 37030439 DOI: 10.1016/j.jormas.2023.101466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/09/2023] [Accepted: 04/05/2023] [Indexed: 04/10/2023]
Abstract
The odontogenic keratocyst (OKC) is a common cystic lesion of the maxilla and mandible. Squamous cell carcinoma (SCC) arising from OKC or dysplasia occurring in OKC is rare. This study aimed to explore the incidence and clinical features of the dysplasia and malignant transformation of OKC. In this study, 544 patients diagnosed with OKC were collected. Among them, 3 patients were diagnosed as SCC arising from OKC, and 12 patients were diagnosed as OKC with dysplasia. The incidence was calculated. Clinical features were analyzed by chi-square test. In addition, a representative case reconstructing mandible with vascularized fibula flap under general anesthesia was reported. And cases reported before were reviewed. The incidence of the dysplasia and malignant transformation of OKC, which are highly associated with the clinical features of swelling and chronic inflammation, is about 2.76%. But the relevance between the dysplasia and malignant transformation and age, gender together with pain is not statistically high. All in all, the clinical features of swelling and chronic inflammation can be considered as characteristics of the dysplasia and malignant transformation of OKC. Although the pain isn't statistically relevant, it may be a dangerous clew. Also, combined with earlier literatures, the dysplasia and malignant transformation of OKC shows unique features of radiographs and histopathology.
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Affiliation(s)
- Ji Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Er-Hui Jiang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Sheng-Chao Jiang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Bing Liu
- Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xue-Peng Xiong
- Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yan-Fang Sun
- Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
| | - Wei-Wei Deng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
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Hii EPW, Ramanathan A, Pandarathodiyil AK, Wong GR, Sekhar EVS, Binti Talib R, Zaini ZM, Zain RB. Homeobox Genes in Odontogenic Lesions: A Scoping Review. Head Neck Pathol 2023; 17:218-232. [PMID: 36344906 PMCID: PMC10063701 DOI: 10.1007/s12105-022-01481-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Homeobox genes play crucial roles in tooth morphogenesis and development and thus mutations in homeobox genes cause developmental disorders such as odontogenic lesions. The aim of this scoping review is to identify and compile available data from the literatures on the topic of homeobox gene expression in odontogenic lesions. METHOD An electronic search to collate all the information on studies on homeobox gene expression in odontogenic lesions was carried out in four databases (PubMed, EBSCO host, Web of Science and Cochrane Library) with selected keywords. All papers which reported expression of homeobox genes in odontogenic lesions were considered. RESULTS A total of eleven (11) papers describing expression of homeobox genes in odontogenic lesions were identified. Methods of studies included next generation sequencing, microarray analysis, RT-PCR, Western blotting, in situ hybridization, and immunohistochemistry. The homeobox reported in odontogenic lesions includes LHX8 and DLX3 in odontoma; PITX2, MSX1, MSX2, DLX, DLX2, DLX3, DLX4, DLX5, DLX6, ISL1, OCT4 and HOX C in ameloblastoma; OCT4 in adenomatoid odontogenic tumour; PITX2 and MSX2 in primordial odontogenic tumour; PAX9 and BARX1 in odontogenic keratocyst; PITX2, ZEB1 and MEIS2 in ameloblastic carcinoma while there is absence of DLX2, DLX3 and MSX2 in clear cell odontogenic carcinoma. CONCLUSIONS This paper summarized and reviews the possible link between homeobox gene expression in odontogenic lesions. Based on the current available data, there are insufficient evidence to support any definite role of homeobox gene in odontogenic lesions.
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Affiliation(s)
- Erica Pey Wen Hii
- Department of Oral & Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Anand Ramanathan
- Department of Oral & Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
- Oral Cancer Research & Coordinating Centre, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
| | | | - Gou Rean Wong
- Faculty of Dentistry, MAHSA University, Jenjarom, Selangor, Malaysia
| | - E V Soma Sekhar
- Faculty of Dentistry, MAHSA University, Jenjarom, Selangor, Malaysia
| | | | - Zuraiza Mohamad Zaini
- Department of Oral & Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
- Oral Cancer Research & Coordinating Centre, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Rosnah Binti Zain
- Oral Cancer Research & Coordinating Centre, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
- Faculty of Dentistry, MAHSA University, Jenjarom, Selangor, Malaysia
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Sulistyani LD, Iskandar L, Zairinal VN, Arlen AK, Purba F, Ariawan D. Transformation of Odontogenic Cysts to Neoplasms - A Systematic Review. Ann Maxillofac Surg 2023; 13:76-80. [PMID: 37711539 PMCID: PMC10499293 DOI: 10.4103/ams.ams_226_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/08/2023] [Accepted: 04/27/2023] [Indexed: 09/16/2023] Open
Abstract
Background Odontogenic cysts have the potential to transform into neoplasms. However, the characteristics of those which transformed to neoplastic tissues have not been well described and the exact causes of that phenomenon are not yet clear. Objectives This study aims to describe characteristics of odontogenic cysts that transformed into neoplasms and to look for their potential etiologies. Data Sources English-written studies indexed in PubMed, Science Direct, and Proquest were assessed using keywords verified by Medical Subject Headings: 'Odontogenic Cyst' and 'Neoplastic Cell Transformation'. Study Eligibility Criteria Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) guidelines were used as guidance. Participants Following steps in PRISMA guidelines, 19 articles were fully reviewed (three case series and 16 case reports) with 27 subjects of 16 males (59%) and 11 females (41%) from 15 to 86 years old. Results Cystic origins were eight dentigerous cysts, four odontogenic keratocysts, two residual cysts, one radicular cyst, one calcifying odontogenic cyst, one follicular cyst, one glandular odontogenic cyst, and nine unspecified odontogenic cysts that transformed to ameloblastoma (3 cases) and carcinoma (24 cases). Limitations Neoplastic transformations of odontogenic cysts arose from epithelial remnants of inadequate odontogenic cyst removal and chronic inflammation due to infection. However, the exact causes of their transformations remain unclear. Conclusions Therefore, careful removal of odontogenic cysts and regular postoperative follow-ups are key to prevent recurrence and neoplastic transformation. Future studies are needed to investigate potential causes of neoplastic transformation of odontogenic cysts.
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Affiliation(s)
- Lilies Dwi Sulistyani
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universitas Indonesia, West Java, Indonesia
| | - Lilis Iskandar
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universitas Indonesia, West Java, Indonesia
| | - Vaza Nadia Zairinal
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universitas Indonesia, West Java, Indonesia
| | - Antonius Kevin Arlen
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universitas Indonesia, West Java, Indonesia
| | - Fatmasari Purba
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universitas Indonesia, West Java, Indonesia
| | - Dwi Ariawan
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universitas Indonesia, West Java, Indonesia
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Mahdavi N, Zavarei M, Derakhshan S, Nasab MH. Orthokeratinized odontogenic cyst: Report of eight cases and review of literature regarding its malignant transformation. J Oral Maxillofac Pathol 2021; 25:S11-S17. [PMID: 34083963 PMCID: PMC8123257 DOI: 10.4103/jomfp.jomfp_1_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 07/28/2020] [Accepted: 08/11/2020] [Indexed: 11/13/2022] Open
Abstract
Orthokeratinized odontogenic cyst (OOC) is an uncommon odontogenic cyst. It has been categorized as a subtype of odontogenic keratocyst (OKC). In 2005, it was classified as a distinct entity. OOC should be histopathologically differentiated from OKC, which has a higher recurrence rate and lower malignant potential. In addition, OOC should be examined for malignant transformation. The epithelium of odontogenic cysts may rarely show malignant transformation. However, malignant transformation has been reported in inflammatory cysts such as the residual cyst and periapical cyst. The number of carcinomas arising from an OOC is low. This paper describes eight cases of OOC; out of which, two showed the development of squamous cell carcinoma from their epithelial lining.
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Affiliation(s)
- Nazanin Mahdavi
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Tehran University of Medical Sciences, Kashan, Iran
| | - Mona Zavarei
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Kashan University of Medical Sciences, Kashan, Iran
| | - Samira Derakhshan
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Tehran University of Medical Sciences, Kashan, Iran
| | - Mahboube Hashemi Nasab
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Tehran University of Medical Sciences, Kashan, Iran
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Li Y, Zuo JL, Tang JS, Shen XY, Xu SH, Xiao JL. Primary nonkeratinizing squamous cell carcinoma of the scapular bone: A case report. World J Clin Cases 2021; 9:976-982. [PMID: 33585647 PMCID: PMC7852629 DOI: 10.12998/wjcc.v9.i4.976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/09/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Squamous cell carcinoma (SCC) of bone is usually caused by metastasis from the lungs, bladder, or other sites. Primary SCC of bone most frequently involves the skull bones, and primary involvement of other sites in the skeletal system is extremely rare. To date, only three such cases have been reported, which makes the diagnosis, treatment, and prognosis of this disease a challenge.
CASE SUMMARY A 76-year-old Chinese man presented to our hospital with nonspecific pain and limited mobility in the right shoulder for 4 mo. He underwent three-dimensional computed tomography reconstruction and magnetic resonance imaging of the right shoulder, which revealed an osteolytic destructive lesion in the right scapula with invasion into the surrounding muscles and soft tissues. Ultrasound-guided core needle biopsy detected a malignant tumor, and immunohistochemical analysis revealed a poorly differentiated SCC. Wide excision of the right scapular bone was performed, and pathological examination of the surgical specimen confirmed the diagnosis. At the last follow-up examination within 2 years, the patient was doing well with the pain significantly relieved in the right shoulder.
CONCLUSION Primary SCC of bone is extremely rare at sites other than the skull. Clinicians must exhaust all available means for the diagnosis of primary SCC of the bone, so greater attention can be paid to its timely and effective management. Regular and adequate follow-up is essential to help rule out metastasis and judge the prognosis.
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Affiliation(s)
- Yang Li
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
| | - Jian-Lin Zuo
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
| | - Jin-Shuo Tang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
| | - Xian-Yue Shen
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun 130033, Jilin Province, China
| | - Sheng-Hao Xu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
| | - Jian-Lin Xiao
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
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Ye P, Wei T, Gao Y, Zhang W, Peng X. Primary intraosseous squamous cell carcinoma arising from an odontogenic keratocyst: case series and literature review. Med Oral Patol Oral Cir Bucal 2021; 26:e49-e55. [PMID: 33037806 PMCID: PMC7806341 DOI: 10.4317/medoral.23947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 09/17/2020] [Indexed: 11/25/2022] Open
Abstract
Background The aim of this study was to investigate the clinicopathologic features of primary intraosseous squamous cell carcinoma arising from an odontogenic keratocyst (PIOSCC ex OKC) and comprehensively improve the understanding of this disease.
Material and Methods We retrospectively investigated five cases of PIOSCC ex OKC at Peking University School and Hospital of Stomatology. We also conducted a systematic review of studies on PIOSCC ex OKC by using online databases from their inception until February 2020.
Results In our series of five cases, all lesions were located in the mandible. Three cases (60%) showed recurrent OKCs and two cases (40%) showed primary OKCs. During the follow-up period, one patient died of local relapse. No patients developed metastasis. On the basis of our literature survey, we selected 22 articles reporting 29 patients with PIOSCC ex OKC. Seven of these patients (24.1%) showed local recurrence, three patients (10.3%) developed cervical metastasis, three patients (10.3%) developed distant metastasis (in the pleura in one case and in the lung in two cases), and seven patients died from the disease during the follow-up period. The disease-specific 5-year survival rate in the study group was 53.2%. Through univariate and multivariate analysis, local recurrence was identified as the only significant independent prognostic factor for survival (P < 0.05).
Conclusions The results suggest that PIOSCC ex OKC is a rare intermediate-grade malignancy. Although elective neck dissection is typically unnecessary, adequate therapy should be applied to achieve the lowest local recurrence rate possible to ensure a favorable survival rate. Key words:Primary intraosseous squamous cell carcinoma, odontogenic keratocyst, prognosis.
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Affiliation(s)
- P Ye
- Peking University School and Hospital of Stomatology 22 Zhongguancun Nandajie, Haidian District Beijing 100081, People's Republic of China
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Kumchai H, Champion AF, Gates JC. Carcinomatous Transformation of Odontogenic Keratocyst and Primary Intraosseous Carcinoma: A Systematic Review and Report of a Case. J Oral Maxillofac Surg 2021; 79:1081.e1-1081.e9. [PMID: 33529609 DOI: 10.1016/j.joms.2020.12.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 01/27/2023]
Abstract
PURPOSE To assess the prognostic findings of the carcinomatous transformation of odontogenic keratocyst (OKC). METHODS A systematic review of all cases of carcinomatous transformation of OKC was completed, and a case report was included. RESULTS A total of 679 publications were screened, and 37 cases met inclusion criteria. The mean age for patients with malignant transformation of OKC was 45.1 years. Pain (67.5%) and swelling (78.3%) were the most common symptoms. The malignant transformation occurred with increased frequency in the posterior mandible and larger lesions that span greater than 2 subunits of the involved jaw. Resection was the definitive treatment in all cases and 14 cases (46%) utilized adjuvant treatment. CONCLUSIONS Patient outcomes and follow-up was variable in our study such that overall survival was difficult to determine. However, overall survival in malignant transformation of odontogenic cysts of all kinds ranges from 62 to 85% and 30 to 8% for 2 and 5 years, respectively.
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Affiliation(s)
- Hattanas Kumchai
- Resident and PhD Student, Oral & Maxillofacial Surgery Department, Thomas Jefferson University Hospital, Philadelphia, PA.
| | - Allen F Champion
- Assistant Professor, Oral & Maxillofacial Surgery Department, Thomas Jefferson University Hospital, Philadelphia, PA
| | - James C Gates
- Clinical Instructor, Oral & Maxillofacial Surgery Department, Thomas Jefferson University Hospital, Philadelphia, PA
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Hauer L, Seidlová P, Merglová V, Hrusak D, Böhmová H, Posta P, Gencur J, Netolicky J. Complete removal of dentigerous cysts with preservation of associated teeth as an alternative to marsupialization in children and preadolescents. J Craniomaxillofac Surg 2020; 48:808-814. [PMID: 32593630 DOI: 10.1016/j.jcms.2020.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/15/2020] [Accepted: 05/31/2020] [Indexed: 11/25/2022] Open
Abstract
The aim of this study is to evaluate the results of dentigerous cysts enucleation with preservation of cyst-associated teeth as a single procedure in a group of children and preadolescents. A retrospective case series of seven patients with 15 unerupted developing teeth associated with or adjacent to dentigerous cysts was conducted. Patients were treated using the uniform surgical protocol (cystectomy, preservation of cyst-associated teeth, without use of orthodontic traction, primary wound closure). The metric analysis of the cysts and unerupted teeth on CBCT and an evaluation of the state of involved teeth after the treatment was performed. The mean age of patients was 9.0 ± 2.1 years (range 5-12 years, median = 9 years). All teeth erupted spontaneously. No serious postoperative complications or recurrences of lesions were detected. The mean follow-up was 53.1 ± 15.7 months (range 25-71 months, median = 52 months). The cystectomy of dentigerous cysts with preservation of associated teeth may be considered an alternative to marsupialization in children and preadolescents.
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Affiliation(s)
- Lukas Hauer
- Department of Oral and Maxillofacial Surgery (Head of Department: Dr. Daniel Hrusak, Ph.D.), University Hospital and Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 304 60, Pilsen, Czech Republic.
| | - Petra Seidlová
- Department of Dentistry (Head of Department: As. Prof. Dr. Antonin Zicha, CSc.), University Hospital and Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 304 60, Pilsen, Czech Republic
| | - Vlasta Merglová
- Department of Dentistry (Head of Department: As. Prof. Dr. Antonin Zicha, CSc.), University Hospital and Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 304 60, Pilsen, Czech Republic
| | - Daniel Hrusak
- Department of Oral and Maxillofacial Surgery (Head of Department: Dr. Daniel Hrusak, Ph.D.), University Hospital and Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 304 60, Pilsen, Czech Republic
| | - Hana Böhmová
- Department of Dentistry (Head of Department: As. Prof. Dr. Antonin Zicha, CSc.), University Hospital and Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 304 60, Pilsen, Czech Republic
| | - Petr Posta
- Department of Oral and Maxillofacial Surgery (Head of Department: Dr. Daniel Hrusak, Ph.D.), University Hospital and Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 304 60, Pilsen, Czech Republic
| | - Jiri Gencur
- Department of Oral and Maxillofacial Surgery (Head of Department: Dr. Daniel Hrusak, Ph.D.), University Hospital and Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 304 60, Pilsen, Czech Republic
| | - Jan Netolicky
- Department of Dentistry (Head of Department: As. Prof. Dr. Antonin Zicha, CSc.), University Hospital and Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 304 60, Pilsen, Czech Republic
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Martínez-Martínez M, Mosqueda-Taylor A, Carlos-Bregni R, Pires FR, Delgado-Azanero W, Neves-Silva R, Aldape-Barrios B, Paes-de Almeida O. Comparative histological and immunohistochemical study of ameloblastomas and ameloblastic carcinomas. Med Oral Patol Oral Cir Bucal 2017; 22:e324-e332. [PMID: 28390135 PMCID: PMC5432081 DOI: 10.4317/medoral.21901] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 03/03/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND This study aimed to compare the histological and immunohistochemical characteristics of ameloblastomas (AM) and ameloblastic carcinomas (AC). MATERIAL AND METHODS Fifteen cases of AM and 9 AC were submitted to hematoxilin and eosin (H&E) and immunohistochemical analysis with the following antibodies: cytokeratins 5,7,8,14 and 19, Ki-67, p53, p63 and the cellular adhesion molecules CD138 (Syndecan-1), E-cadherin and β-catenin. The mean score of the expression of Ki-67 and p53 labelling index (LIs) were compared between the groups using the t test. A value of p<0.05 was considered to be statistically significant. RESULTS All cases were positive for CKs 5, 14 and 19, but negative for CKs 7 and 8. CKs 5 and 19 were positive mainly in the central regions of the ameloblastic islands, while the expression in AC was variable in intensity and localization. CK14 was also variably expressed in both AM and AC. Ki-67 (P=.001) and p53 (P=.004) immunoexpression was higher in AC. All cases were positive for p63, but values were higher in AC. CD138 was mainly expressed in peripheral cells of AM, with a weak positivity in the central areas, while it was positive in most areas of ACs, except in less differentiated regions, where expression was decreased or lost. E-cadherin and β-catenin were weakly positive in both AM and AC. CONCLUSIONS These results shows that Ki-67, p53 and p63 expression was higher in AC as compared to AM, suggesting that these markers can be useful when considering diagnosis of malignancy, and perhaps could play a role in malignant transformation of AM. Pattern of expression of CKs 5 and 19 in AC were different to those found in AM, suggesting genetic alterations of these proteins in malignant cells. It was confirmed that CK19 is a good marker for benign odontogenic tumors, such as AM, but it is variably expressed in malignant cases.
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Affiliation(s)
- M Martínez-Martínez
- Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira 901, P.O. Box 52, 13414-903 Piracicaba, São Paulo, Brazil,
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