Vol. 117 No. 2 February 2014
Abstracts of the XXI Brazilian Congress of Oral Medicine and Oral Pathology
ORAL PRESENTATIONS AO-01 - MAXILLARY OSTEOSARCOMA INITIALLY RESEMBLING PERIAPEX DENTAL INJURY: CLINICAL CASE REPORT. JOANA DOURADO MARTINS, JARIELLE OLIVEIRA MASCARENHAS ANDRADE, JULIANA ARAUJO LIMA DA SILVA, ALESSANDRA LAIS PINHO VALENTE, MÁRCIO CAMPOS OLIVEIRA, MICHELLE MIRANDA LOPES FALCÃO, VALÉRIA SOUZA FREITAS. UNIVERSIDADE ESTADUAL DE FEIRA DE SANTANA. Maxillary osteosarcoma is a rare and aggressive bone tumor that can initially resemble a periapical lesion. Man, 42, came to the Oral Lesions Reference Center at UEFS complaining of “tooth numbness and swollen gums” and loss of sensation in the anterior teeth. His history included previous endodontic emergency treatment of units 1.1 and 2.1. The extraoral examination demonstrated anterior swelling. The intraoral examination revealed an exophytic, irregular erythematous lesion with necrotic foci in the region of the upper central incisors. The patient underwent exploratory puncture biopsy; the results of ﬂuid and histopathological investigation were negative, suggesting the diagnosis of telangiectatic osteosarcoma. The patient was referred for treatment at a Referral Oncology Hospital and then close follow-up. The reported case highlights the importance of careful evaluation and follow-up of periapical lesions, since the early stages of malignant bone tumors such as osteosarcomas can mimic periapical disease.
AO-02 - ADENOID CYSTIC CARCINOMA OF BUCCAL MUCOSA. MARINA LARA DE CARLI, FERNANDA RAFAELLY DE OLIVEIRA PEDREIRA, EDUARDO PEREIRA GUIMARÃES, PAOLA SINGI, ALESSANDRO ANTÔNIO COSTA PEREIRA, JOÃO ADOLFO COSTA HANEMANN. SCHOOL OF DENTISTRY, ALFENAS FEDERAL UNIVERSITY.
GERMANO, MÁRCIA CRISTINA DA COSTA MIGUEL, ÉRICKA JANINE DANTAS DA SILVEIRA. UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE. Renal osteodystrophy represents the musculoskeletal manifestations resulting from metabolic abnormalities in patients with chronic renal failure (CRF). Woman, 23, reported a hard, asymptomatic, expansive mass present for 4 years on the right side of the face that was causing airway compromise and facial disﬁgurement. Her history included idiopathic CRF, and she had been receiving hemodialysis for 10 years. During this period she developed secondary hyperparathyroidism that was managed with total parathyroidectomy. Computed tomography revealed marked osseous expansion on the right side of the maxilla and discrete expansion on the right side of mandible and cranial base. The clinical diagnosis was brown tumor. Incisional biopsy led to a diagnosis of renal osteodystrophy. After laboratory analysis and hemodynamic preparation she underwent partial resection of the lesion and osteoplasty under general anesthesia. One month after the surgical procedure, her serum parathyroid hormone levels remain normal.
AO-04 - ANTIMICROBIAL PHOTODYNAMIC THERAPY: A NEW APPROACH FOR ORAL CANDIDIASIS? KARLA BIANCA FERNANDES DA COSTA FONTES, BARBARA FREIMANN VIEIRA, ADEMAR TAKAHAMA JÚNIOR, REBECA DE SOUZA AZEVEDO, DANIELLE RESENDE CAMISASCA BARROSO, ELIANE PEDRA DIAS. UNIVERSIDADE FEDERAL FLUMINENSE, NOVA FRIBURGO UNIVERSITY POLE AND POSTGRADUATE PROGRAM OF PATHOLOGY. Antimicrobial photodynamic therapy (aPDT) is currently recommended for the treatment of various bacterial, fungal, and viral infections. The efﬁcacy of aPDT was shown in one patient with prosthetic stomatitis and oral candidiasis. White man, 50, who had prosthetic stomatitis underwent scraping of the palate mucosa. Cytopathological analysis showed infection by Candida spp. The patient was treated with weekly methylene blue 0.01% and irradiation with GaAlAs diode laser (660nm, 4 J, 142 J/cm2, 100mW) on the entire palate. After six sessions, the patient showed no prosthetic stomatitis; cytopathological examination showed no candidiasis. aPDT appears to be an effective treatment for oral candidiasis, but further studies with long-term clinical and cytopathological follow-up are needed to assess its efﬁcacy.
Adenoid cystic carcinoma is a malignant salivary tumor that may arise in either major or minor salivary glands. The peak incidence is in the sixth decade of life with a slight female predilection. Man, 56, was referred to the Stomatology Clinic of Unifal-MG for evaluation of a ﬁrm, painful submucous swelling on the right buccal mucosa. The patient reported that the lesion had been present for about 18 months and he had recently experienced severe trismus. Radiographic examination showed no signiﬁcant abnormalities. An incisional biopsy led to the diagnosis of adenoid cystic carcinoma. The patient underwent chemotherapy and radiotherapy that signiﬁcantly improved the lesion. Adenoid cyst carcinoma can occur in any salivary gland site, but approximately 50% develop within the minor salivary glands. The palate is the most common site for minor gland tumors, but this case demonstrates its occurrence in the buccal mucosa. Financial Support: FAPEMIG
AO-05 - BASAL CELL ADENOMA AND CANALICULAR ADENOMA: REPORT OF CASES. GRAZIELE BEANES DA SILVA SANTOS, JEAN NUNES DOS SANTOS, FLÁVIA CALÓ DE AQUINO XAVIER, LILIANE LINS, ANTÔNIO FERNANDO PEREIRA FALCÃO. UNIVERSIDADE FEDERAL DA BAHIA.
AO-03 - AGGRESSIVE RENAL OSTEODYSTROPHY OF THE MAXILLOFACIAL REGION IN A YOUNG ADULT WITH CHRONIC RENAL FAILURE: CASE REPORT. MARIA LUIZA DINIZ DE SOUSA LOPES, ASSIS FILIPE MEDEIROS ALBUQUERQUE, ADRIANO ROCHA
Basal cell adenoma (BCA) and canalicular adenoma (CA) are rare salivary gland tumors. The upper lip is the site most often involved for CA, whereas BCA arises most commonly in the parotid gland. The differential diagnosis should be based on histopathological analysis of the lesions. Four cases of asymptomatic nodules in the upper lip (two men and two women) were