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Calcifying epithelial odontogenic tumor in maxila: case report
Vol. 114 No. 4 October 2012
Poster 1
USEFULNESS OF TELEDIAGNOSIS IN STOMATOLOGY Nunes AC1, Tango EK2, Mesquita ATM3, Vasconcellos AFG4, Cruz AD5, Takahama Júnior A1 - 1UNIVERSIDADE FEDERAL FLUMINENSE - FACULDADE DE ODONTOLOGIA - PÓLO UNIVERSITÁRIO DE NOVA FRIBURGO, 2UNIVERSIDADE ESTADUAL PAULISTA - FACULDADE DE ODONTOLOGIA DE SÃO JOSÉ DOS CAMPOS, 3UNIVERSIDADE FEDERAL DE DIAMANTINA - FACULDADE DE ODONTOLOGIA, 4INSTITUTO DO CÂNCER DO ESTADO DE SÃO PAULO - ODONTOLOGIA ONCOLÓGICA, 5UNIVERSIDADE FEDERAL FLUMINENSE - FACULDADE DE ODONTOLOGIA Background: The use of online communication and information technology for sharing data, images and videos among professionals who are in distant locations, in order to aid in the diagnosis, treatment plan and prognosis, has been called ”telediagnosis. Objectives: The objective of this study was to evaluate the feasibility of this method in the diagnosis of oral lesions. Study design: Forty clinical cases containing digital photos and medical information, were sent by email to 3 professional’s experts in stomatology. These evaluators had to provide diagnostic hypotheses and actions to be performed for each case. Results: At the end we found an average of 90% of correct hypothesis and 100% of correct actions. Conclusion: The “telediagnosis” is an effective tool in helping establish the diagnosis of oral lesions. Online communication could be used in public health system as a method to reduce costs and improve the care of the population.
CALCIFYING EPITHELIAL ODONTOGENIC TUMOR IN MAXILA: CASE REPORT Gomes TG, Silva RV1, Resende RFB1, Spyrides KS1, Oliveira SP2, Medeiros N1, Alves ATNN - 1UNIVERSIDADE GAMA FILHO - ODONTOLOGIA, 2OCEX - ESTOMATOLOGIA Calcifying epithelial odontogenic tumor (CEOT) is a rare, benign odontogenic tumor. It constitutes 0.4-3% of all odontogenic tumors. Although these lesions are benign, they can be locally aggressive. Considering its locally aggressive nature, appropriate management and long-term follow-up is recommended. The rate of recurrence after surgical excision ranging 10-15%. Microscopically, these are composed of large sheets of epithelial cells, amorphous amyloid-like material and calcification. We describe a rare case of CEOT in maxilla occurring in a 26-year-old black male that who attended the oral surgery clinic dental school of Universidade Gama Filho for removal of third molar. At physical examination, we identified swelling in the left maxilla. The panoramic radiograph revealed an image of the jaws inaccurate in the region corresponding to the ipsilateral upper molars; resorption of the roots of the teeth and fourth molar were identified. Incisional biopsy was performed with histopathologic diagnosis of CEOT.
MSX2 AND CTIP2/BCL11B EXPRESSION IN AMELOBLASTOMAS Jesus AS1, Abreu MC1, Silva BTC1, Borsero AD1, Carvalho PL1, Pontes HAR1, Pontes FSC1 - 1UFPA -
e42
SERVIÇO DE PATOLOGIA ORAL DO HOSPITAL UNIVERSITÁRIO JOÃO DE BARROS BARRETO Background/objective: Few reports show the expression of Msx2 and Ctip2/Bcl11b in odontogenic tumors. The aim of this study was to identify the expression of Ctip2 and Msx2 in ameloblastoma variants. Study design: Immunohistochemical analysis of Msx2 and Ctip2 were performed in 36 ameloblastomas (both multicystic and unicystic), with confirmed histological diagnoses, selected from the Oral Pathology clinic of the João de Barros Barreto University Hospital. Fisher’s exact test was used to compare the expression of Ctip2 and Msx2 in ameloblastomas. P ⱕ 0.05 was considered to be statistically significant. Results: The results showed that all the specimens of ameloblastoma had strong positivity for Msx2 protein in the peripheral collunar cells of the tumoral islands, while absent staining was observed in all the specimens for Ctip2 protein. Conclusions: The staining pattern found in the ameloblastoma specimens for the proteins tested suggests that Msx2 takes part of the pathogenesis of this lesion.
ODONTOGENIC GLANDULAR CYST DIAGNOSED IN A HEAD AND NECK CANCER PATIENT: THE IMPORTANCE OF PRE-RADIOTHERAPY DENTAL SCREENING Gouvêa AF1, Ribeiro ACP1, Rosa GB1, Jaguar GC1, SantosSilva AR2, de Almeida OP2, Brandão TB1 - 11. DENTAL ONCOLOGY SERVICE, SAO PAULO CANCER INSTITUTE, ICESP, SÃO PAULO, BRAZIL., 22. DEPARTMENT OF ORAL DIAGNOSIS, PIRACICABA DENTAL SCHOOL, STATE UNIVERSITY OF CAMPINAS, SÃO PAULO, BRAZIL The authors report the case of a 40 years-old heavy smoker and drinker male diagnosed with an oropharynx squamous cell carcinoma (SCC), referred for pre-radiotherapy dental evaluation. A radiolucent lesion involving left ramus and body of the mandible was observed on panoramic radiography, but it was unnoticed in the medical oncologic examination of the computed tomography, which showed a hypodense expansive lesion narrowing the mandibular cortical bone and shifting the mandibular canal inferiorly. The lesion was biopsied and diagnosed as a glandular odontogenic cyst, which may present a local aggressiveness and destructive course. Combined chemoradiotherapy was started for the treatment of the oropharynx SCC, but patient evolved with progressive disease and died eleven months later due to septic shock without treatment of the mandible lesion. Proper dental management in such cases must be done, since there is a risk of later irradiation-related oral complications, especially osteoradionecrosis.
EVALUATION OF STUDENT’S PERCEPTION ABOUT HIV, HTLV AND HBV SEROPOSITIVES PATIENTS Gomes TM, Pedreira AA, Santos MCC, Santos MS, Reis SRA, Medrado ARAP Background/objective: HIV, HTLV and HBV viruses have caused a huge tension among health professionals. This study aims to describe the perception of the students of a Dentistry
Poster 1
USEFULNESS OF TELEDIAGNOSIS IN STOMATOLOGY Nunes AC1, Tango EK2, Mesquita ATM3, Vasconcellos AFG4, Cruz AD5, Takahama Júnior A1 - 1UNIVERSIDADE FEDERAL FLUMINENSE - FACULDADE DE ODONTOLOGIA - PÓLO UNIVERSITÁRIO DE NOVA FRIBURGO, 2UNIVERSIDADE ESTADUAL PAULISTA - FACULDADE DE ODONTOLOGIA DE SÃO JOSÉ DOS CAMPOS, 3UNIVERSIDADE FEDERAL DE DIAMANTINA - FACULDADE DE ODONTOLOGIA, 4INSTITUTO DO CÂNCER DO ESTADO DE SÃO PAULO - ODONTOLOGIA ONCOLÓGICA, 5UNIVERSIDADE FEDERAL FLUMINENSE - FACULDADE DE ODONTOLOGIA Background: The use of online communication and information technology for sharing data, images and videos among professionals who are in distant locations, in order to aid in the diagnosis, treatment plan and prognosis, has been called ”telediagnosis. Objectives: The objective of this study was to evaluate the feasibility of this method in the diagnosis of oral lesions. Study design: Forty clinical cases containing digital photos and medical information, were sent by email to 3 professional’s experts in stomatology. These evaluators had to provide diagnostic hypotheses and actions to be performed for each case. Results: At the end we found an average of 90% of correct hypothesis and 100% of correct actions. Conclusion: The “telediagnosis” is an effective tool in helping establish the diagnosis of oral lesions. Online communication could be used in public health system as a method to reduce costs and improve the care of the population.
CALCIFYING EPITHELIAL ODONTOGENIC TUMOR IN MAXILA: CASE REPORT Gomes TG, Silva RV1, Resende RFB1, Spyrides KS1, Oliveira SP2, Medeiros N1, Alves ATNN - 1UNIVERSIDADE GAMA FILHO - ODONTOLOGIA, 2OCEX - ESTOMATOLOGIA Calcifying epithelial odontogenic tumor (CEOT) is a rare, benign odontogenic tumor. It constitutes 0.4-3% of all odontogenic tumors. Although these lesions are benign, they can be locally aggressive. Considering its locally aggressive nature, appropriate management and long-term follow-up is recommended. The rate of recurrence after surgical excision ranging 10-15%. Microscopically, these are composed of large sheets of epithelial cells, amorphous amyloid-like material and calcification. We describe a rare case of CEOT in maxilla occurring in a 26-year-old black male that who attended the oral surgery clinic dental school of Universidade Gama Filho for removal of third molar. At physical examination, we identified swelling in the left maxilla. The panoramic radiograph revealed an image of the jaws inaccurate in the region corresponding to the ipsilateral upper molars; resorption of the roots of the teeth and fourth molar were identified. Incisional biopsy was performed with histopathologic diagnosis of CEOT.
MSX2 AND CTIP2/BCL11B EXPRESSION IN AMELOBLASTOMAS Jesus AS1, Abreu MC1, Silva BTC1, Borsero AD1, Carvalho PL1, Pontes HAR1, Pontes FSC1 - 1UFPA -
e42
SERVIÇO DE PATOLOGIA ORAL DO HOSPITAL UNIVERSITÁRIO JOÃO DE BARROS BARRETO Background/objective: Few reports show the expression of Msx2 and Ctip2/Bcl11b in odontogenic tumors. The aim of this study was to identify the expression of Ctip2 and Msx2 in ameloblastoma variants. Study design: Immunohistochemical analysis of Msx2 and Ctip2 were performed in 36 ameloblastomas (both multicystic and unicystic), with confirmed histological diagnoses, selected from the Oral Pathology clinic of the João de Barros Barreto University Hospital. Fisher’s exact test was used to compare the expression of Ctip2 and Msx2 in ameloblastomas. P ⱕ 0.05 was considered to be statistically significant. Results: The results showed that all the specimens of ameloblastoma had strong positivity for Msx2 protein in the peripheral collunar cells of the tumoral islands, while absent staining was observed in all the specimens for Ctip2 protein. Conclusions: The staining pattern found in the ameloblastoma specimens for the proteins tested suggests that Msx2 takes part of the pathogenesis of this lesion.
ODONTOGENIC GLANDULAR CYST DIAGNOSED IN A HEAD AND NECK CANCER PATIENT: THE IMPORTANCE OF PRE-RADIOTHERAPY DENTAL SCREENING Gouvêa AF1, Ribeiro ACP1, Rosa GB1, Jaguar GC1, SantosSilva AR2, de Almeida OP2, Brandão TB1 - 11. DENTAL ONCOLOGY SERVICE, SAO PAULO CANCER INSTITUTE, ICESP, SÃO PAULO, BRAZIL., 22. DEPARTMENT OF ORAL DIAGNOSIS, PIRACICABA DENTAL SCHOOL, STATE UNIVERSITY OF CAMPINAS, SÃO PAULO, BRAZIL The authors report the case of a 40 years-old heavy smoker and drinker male diagnosed with an oropharynx squamous cell carcinoma (SCC), referred for pre-radiotherapy dental evaluation. A radiolucent lesion involving left ramus and body of the mandible was observed on panoramic radiography, but it was unnoticed in the medical oncologic examination of the computed tomography, which showed a hypodense expansive lesion narrowing the mandibular cortical bone and shifting the mandibular canal inferiorly. The lesion was biopsied and diagnosed as a glandular odontogenic cyst, which may present a local aggressiveness and destructive course. Combined chemoradiotherapy was started for the treatment of the oropharynx SCC, but patient evolved with progressive disease and died eleven months later due to septic shock without treatment of the mandible lesion. Proper dental management in such cases must be done, since there is a risk of later irradiation-related oral complications, especially osteoradionecrosis.
EVALUATION OF STUDENT’S PERCEPTION ABOUT HIV, HTLV AND HBV SEROPOSITIVES PATIENTS Gomes TM, Pedreira AA, Santos MCC, Santos MS, Reis SRA, Medrado ARAP Background/objective: HIV, HTLV and HBV viruses have caused a huge tension among health professionals. This study aims to describe the perception of the students of a Dentistry