ABSTRACTS e44 with an 8-mm width. During clinical examination, a large lump on the dorsum was noticed, which was suggested to be a lipoma by the pat...

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with an 8-mm width. During clinical examination, a large lump on the dorsum was noticed, which was suggested to be a lipoma by the patient. Fine needle aspiration cytology was carried out followed by an excisional biopsy. Microscopic evaluation diagnosed a nodular neurofibroma, and advised further investigation to rule out the chance of being a case of neurofibromatosis. Additional clinical examination found cafe-au-lait spots, Lisch nodules, multiple subcutaneous nodules on other parts of the body, and enlarged fungiform papillae of the tongue. Neurofibromatosis type I is the most common manifestation of the syndrome, but as shown in the present study, its diagnosis can be difficult because of the discrete presentation of its stigmata, caused by skin and eye color, as well as absence of superficial neurofibromas.

ORAL FINDINGS IN SECONDARY SYPHILIS. RODRIGO SOARES DE ANDRADE, EDIMILSON MARTINS DE FREITAS, BRENO e MARIO  AMARAL ROCHA, EDSON DA SILVA GUSMAO, RODRIGUES MELO FILHO and, HERCILIO MARTELLI  JUNIOR Syphilis is a sexually transmitted disease. However, there are hematogenous and vertical transmissions. All health care professionals must be aware of the manifestations of this condition, such as oral lesions. This study aims to analyze and compare 4 clinical cases of syphilis diagnosed based on lesions in the oral cavity with the current published literature. Four patients with a confirmed serologic and clinical diagnosis of syphilis, and confirmed manifestation of oral lesions, were evaluated. Lesions were found on the lips, tongue, and skin. However, there were also lesions on the hard palate and labial commissure, which correspond to less than 5% of the syphilis oral manifestations. The practice of unprotected oral sex may result in infection and development of syphilis. The knowledge of the oral manifestations of syphilis is of major importance, the association of clinical features, histopathologic findings, and serologic tests are required to complete the diagnosis and correct treatment.

OSTEOCHONDROMA OF THE MANDIBULAR CONDYLE: A CASE REPORT. JUSSARA MARIA GON¸CALVES, LUIZ HENRIQUE  MAROLA and, ROGERIO GONDAK Osteochondroma, also known as osteocartilaginous exostosis, is a rare exophytic lesion that arises from the cortex of the bone and is capped with cartilage. A 28-year-old woman presented with a 10-month history of increasing dentofacial asymmetry. Clinical examination revealed the left border of the mandible more inferiorly placed compared with the other side, with deviation of her chin pointing to the right. Computerized tomography demonstrated a bony outgrowth present between the head of the left condyle and the glenoid fossa, with a maximum anteroposterior dimension of 3 cm. Union between the condyle and the glenoid fossa was not observed, although the fossa was irregular in outline. Excision of the lesion with condylar remodeling and disk repositioning was performed. Microscopically, sections showed a benign neoplasia from mesenquimal origin composed of immature cartilaginous tissue with binucleate chondrocytes inserted in columns. These features described confirm the diagnosis of osteochondroma. Follow-up examinations continue to be performed.

OOOO January 2020 EXTRAFOLICULAR ADENOMATOID  TUMOR: A CASE REPORT. NATHALIA DE SOUZA BRITTO, PAULA CARDOSO RODRIGUES REINBRECHT, BRUNO AUGUSTO BENEVENUTO DE ANDRADE, MARIO ROMANACH, SARAH APARECIDA FERREIRA ANTERO, CARLA ^ e ISRAEL RENATA PETILLO and, MONICA SIMOES Adenomatoid odontogenic tumor (AOT) is a relatively uncommon lesion, described as a benign neoplasm of ectodermal origin. It presents as a slow-growing lesion, and is often asymptomatic. It is uncommon in patients older than 30 years. Women are affected about twice as often as men. The extrafollicular variant is when the tumor is not associated with an included tooth, being in an interradicular position, causing, in most cases, root divergence. A 39-year-old male patient with an increase in volume in the lower premolar region, but otherwise asymptomatic, sought help. A radiolucent area was observed adjacent to the first and second lower premolars, in a triangular shape causing a divergence of these teeth without root resorption. Diagnostic hypotheses were AOT and squamous odontogenic tumor. An incisional biopsy was performed and confirmed the diagnosis of AOT. The lesion was submitted to enucleation surgery. After 1 year of follow-up, no signs of recurrence could be observed.

ODONTOGENIC INFECTIONS: WHAT THE PRACTITIONER NEEDS TO KNOW AND  WHAT TO DO. VITORIA MALAQUIAS BRASIL and, MANUELA MONTEIRO PINOTTI Odontogenic infections that take place within the clinical experience of dental professionals are nowadays considered to be a major public health problem. They are responsible for the growth of morbidity and mortality, even though this occurrence has decreased over the years. It is a disease of an urgent nature that requires immediate care in order to avoid possible systemic involvement. Nevertheless, the general state of the patient’s systemic health can influence the spread and worsening of the disease, making its treatment more difficult. For this reason, this work aims to: (1) emphasize the importance of knowledge of severe oral and maxillofacial infections; (2) recognize the importance of dental surgeons in the morbidity and mortality of the patient; and (3) evaluate the characteristics, causes, classifications, clinical manifestations and treatment of severe odontogenic infections, using as reference cases of celebrities who have gone through this experience.

SQUAMOUS CELL CARCINOMA IN PROLIFERATIVE VERRUCOUS LEUKOPLAKIA: A  ^ CASE REPORT. CLAUDIA CORTES MAYRINK, GLAUCIA ZIMERMANN, CARLA RENATA PETILLO, ROSEMIRO DE MENEZES MACIEL, BRUNO AUGUSTO  BENEVENUTO DE ANDRADE, MARIO JOSE e ^ ROMANACH GONZALEZ SOBRINHO and, MONICA e ISRAEL SIMOES Proliferative verrucous leukoplakia (PVL) is a multifocal and progressive lesion with a high rate of transformation into squamous cell carcinoma (SCC). A 57-year-old white female patient sought help regarding 2 oral lesions. She denied a history of smoking or alcohol use. During examination, an exophytic lesion was noted on the left inferior alveolar ridge. The lesion