PHLEBOTHROMBOSIS ON THE LOWER LIP

PHLEBOTHROMBOSIS ON THE LOWER LIP

ORAL AND MAXILLOFACIAL PATHOLOGY e72 Abstracts an exophytic ulcerated nodular lesion in left mandibular alveolar ridge. CT scan examination revealed a...

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ORAL AND MAXILLOFACIAL PATHOLOGY e72 Abstracts an exophytic ulcerated nodular lesion in left mandibular alveolar ridge. CT scan examination revealed a poorly defined radiolucent lesion comprising the left body and ramus of the mandible. Both cases had initial incisional biopsy confirming the diagnosis of odontogenic myxoma. Hemimandibulectomy was the treatment of choice in both cases, followed by reconstruction with a 2.4 mm titanium fixture plate. The first case has 4 years of follow-up, and the second has 2 years of follow-up, both without recurrence.

CPP89 - SURGICAL TREATMENT OF ATYPICAL SIZE MUCOCELE IN THE LOWER LIP: A CASE REPORT. BEATRIZ TERUMI BARRETO KANEHIRA, GILCINETE SOUZA OLIVEIRA, TIAGO NOVAES PINHEIRO, JOEL MOTTA JUNIOR, VALBER BARBOSA MARTINS, FLAVIO TENDOLO FAYAD, MARCELO VINÍCIUS DE OLIVEIRA. The aim of this study is to report a case of an atypical size mucocele on the lower lip region. A 28-year-old female patient, melanoderma, presented with a complaint of swelling in the lower lip for the last 8 months, painless with volumetric variation during this period, related to repetitive trauma caused by accidental biting, with eventual liquid drainage. On clinical examination, there was a floating nodule in the lower lip approximately 6 cm in its largest diameter, normally colored, with the presence of a small ulcerated area. Excisional biopsy was performed and the anatomic specimen was sent for histopathologic analysis. The microscopic diagnosis was mucous extravasation cyst (mucocele). Follow-up after 12 months revealed no recurrence of the lesion.

CPP90 - CLINICAL, RADIOLOGIC, AND THERAPEUTIC FEATURES OF KERATOCYSTIC ODONTOGENIC TUMOR: A SERIES OF FOUR CASES. GILCINETE SOUZA OLIVEIRA, VALBER BARBOSA MARTINS, GUSTAVO CAVALCANTI DE ALBUQUERQUE, MARCELO VINICIUS DE OLIVEIRA, JOEL MOTTA JUNIOR, TIAGO NOVAES PINHEIRO, FLAVIO TENDOLO FAYAD. Herein we report 4 cases of keratocystic odontogenic tumor. Three male patients and 1 female patient, between 40 and 50 years of age, reported to the oral surgery service presenting with swelling on the mandibular body, in the right side of the mandible in 2 patients, and the remaining cases located in the left mandibular body and ramus. CT scan examination revealed anteroposterior intraosseous radiolucent lesion. All cases had incisional biopsy with histopathologic diagnosis of keratocystic odontogenic tumors. The treatment of choice considered the size and anatomic structures compromised by the lesion. Two cases were treated by enucleation and the other 2 with hemimandibulectomy followed by reconstruction with a 2.4 mm titanium fixture plate. The cases have been on follow-up period of 18 months without recurrence.

CPP91 - PEMPHIGUS VULGARIS IN A YOUNG FEMALE: A CASE REPORT. VÂNIA CAVALCANTI RIBEIRO DA SILVA, EMANUEL SÁVIO DE SOUZA ANDRADE, RONALDO DE CARVALHO RAIMUNDO, JORGE ANTÔNIO ORESTES CARDOSO, GUSTAVO PINA GODOY. A 22-year-old female patient presented with a history of “wounds in the mouth and weight loss.” Denying systemic diseases, she reported similar lesions on the nasal, ocular, and vaginal mucous membranes. No changes were seen on her skin, apart from an inflammatory process in the nail bed. However, several ulcers

OOOO August 2017 were noticed on her lips and inside her mouth, but the exam procedure was impaired because she complained of severe pain. Clinical diagnosis of a pemphigus-like lesion was established and a therapeutic test was accomplished (prednisone 100 mg/day). Five days later, the patient returned with an excellent clinical response and was referred for medical follow-up. An oral perilesional biopsy was carried out and the histopathologic results confirmed the previous clinical diagnosis of pemphigus vulgaris. The patient has been monitored in our service for 10 months. Currently, she is taking 5mg of prednisone per day to control the lesions.

CPP92 - PHLEBOTHROMBOSIS ON THE LOWER LIP. NATÁLIA GALVÃO GARCIA, RODRIGO QUEIRÓZ ALEIXO, MOACYR TADEU VICENTE RODRIGUES, AGNES ASSAO, DENISE TOSTES OLIVEIRA. Phlebothrombosis, or venous thrombosis, is the occlusion of a segment or whole vein because of the formation of a thrombus. It can be caused by systemic change, vascular malformation, vein damage, or the use of predisposing drugs. Herein we report a case of a 47-year-old female patient that presented with a bluish nodule, of fibroelastic consistency, 4 mm diameter, with regular and clear limits outline, located on the left side of the lower lip. The diagnostic hypothesis was of hemangioma. An incisional biopsy was performed and histopathologic analysis detected multiple dilated and congested blood vessels, as well as the presence of a thrombus with areas presenting erythrocytes and fibrin and other areas presenting fibroblasts and blood capillaries. Based on clinical and microscopic features, the diagnosis established was phlebothrombosis or venous thrombosis. Although uncommon in the oral cavity, the phlebothrombosis should be considered as a differential diagnosis of other vascular lesions.

CPP93 - OSTEOSSARCOMA IN A 14-YEAR-OLD GIRL. DOUGLAS MAGNO GUIMARÃES, ALAYDE VIEIRA WANDERLEY, JOAO MATEUS MENDES CERQUEIRA, CLAUDIO ROLDÃO MAGNO GUIMARÃES, FLAVIA SIROTHEAU CORREA PONTES, HELDER ANTONIO REBELO PONTES. Osteosarcomas (OS) of the head and neck region are relatively rare and aggressive malignancies that account for 10% or less of all osteosarcomas, and less than 1% of all head and neck cancers. The median age is in the fourth decade, with a wide range and no gender predilection. The majority of head and neck osteosarcomas arise either in the mandible or maxilla. Histologic subtypes include chondroblastic, osteoblastic, fibroblastic, and telangiectatic. Herein we report a case of OS in a 12-year-old female patient with chief complaint of a painful maxillary swelling presented for 2 months. CT was performed and showed osteolytic lesion in the right maxilla containing bone spicules radiating perpendicular to the outer cortex. Incisional biopsy showed osteoid areas lined by plump osteoblasts with hyperchromatic nuclei, mitotic figures, and sheets of cells showing nuclear and cellular pleomorphism, inflammatory cells, numerous blood vessels, and hemorrhage. The patient is under adjuvant chemotherapy.

CPP94 MAXILLARY RHABDOMYOSSARCOMA: CASE REPORT. DOUGLAS MAGNO GUIMARÃES, JOÃO MATEUS MENDES CERQUEIRA, FELIPE PAIVA FONSECA, OSLEI PAES DE ALMEIDA, CELESTE SÁNCHEZ ROMERO, HELDER ANTONIO REBELO PONTES.