Case Report: Scabies Invading Gingival Tissue.

Non-plaque-induced lesions may occur on the gingiva as medical disorders or manifestations of systemic conditions. Scabies is a parasitic infection caused by Sarcoptes scabiei. Here, we present the first case of oral scabies reported in the literature located on the gingiva in a 43-year-old woman. She was admitted to the hospital complaining of an ulcerative lesion on the gingiva with unknown duration, with a suggestive diagnosis of pemphigoid. A diagnosis of scabies infestation was made based on the visualization of eggs and larvae/nymph forms. The treatment consisted of 100 mg of ivermectin (three times per day for 15 days), supplemental oral hygiene with chlorhexidine, and extensive cleaning. The follow-up was made 30 days after treatment with ivermectin. The patient did not report side effects, with skin and oral lesions completely healed. Based on this, we need to perform a thoughtful ectoscopy examination and be alert to signs that indicate unusual causes to diagnose correctly and choose the appropriate treatment.

Ameloblastoma em maxila: sugestão de abordagem cirúrgica / Maxillary ameloblastoma: suggestion of a surgical approach / Ameloblastoma en maxila: propuesta de abordaje quirúrgico

Introdução: O ameloblastoma é um tumor benigno, localmente invasivo, originário do epitélio odontogênico e é a neoplasia odontogênica mais comum. Apresentam crescimento lento e sua ocorrência na maxila é pouco frequente. Objetivo: Discutir os métodos de tratamento para os ameloblastomas em maxila e demonstrar a utilidade da osteotomia Le Fort I na abordagem destas lesões. Material e Método: Estudo descritivo de relato de caso. Resultados: Observou-se a erradicação da lesão com uma abordagem de baixa morbidade e que permitiu bom resultado estético e funcional. Conclusão: A ressecção é o método mais indicado para tratamento dos ameloblastomas sólidos, e a sua realização utilizando a osteotomia Le Fort I podem trazer vantagens tanto no trans quanto no pós-operatório(AU)

Introduction: Ameloblastoma is a benign, locally invasive tumor that originates from the odontogenic epithelium and is the most common odontogenic neoplasm. They present slow growth and its occurrence in the maxilla is infrequent. Objective: To discuss the treatment methods for maxillary ameloblastomas and to demonstrate the usefulness of Le Fort I Osteotomy in the approach to these lesions. Material and Method: Descriptive study of case report. Results: It was observed eradication of the lesion with a low morbidity approach and that allowed a good esthetic and functional result. Conclusion: Resection is the most appropriate method for the treatment of solid ameloblastomas, and its performance using the Le Fort I osteotomy can have advantages both in the trans and in the postoperative period(AU)

Introducción: El ameloblastoma es un tumor benigno, localmente invasivo, originario del epitelio odontogénico y es la neoplasia odontogénica más común. Se presenta un crecimiento lento y su ocurrencia en la mandíbula es poco frecuente. Objetivo: Discutir los métodos de tratamiento para los ameloblastomas en maxila y demostrar la utilidad de la osteotomía Le Fort I en el abordaje de estas lesiones. Material Y Método: Estudio descriptivo de relato de caso. Resultados: Se observó la erradicación de la lesión con un abordaje de baja morbilidad y que permitió buen resultado estético y funcional. Conclusión: La resección es el método más indicado para el tratamiento de los ameloblastomas sólidos, y su realización utilizando la osteotomía Le Fort I pueden traer ventajas tanto en el trans como en el postoperatorio(AU)

Synovial sarcoma: case report / Sarcoma sinovial: relato de caso

ABSTRACT Introduction: Synovial sarcomas are rare and aggressive neoplasms located in the head and neck region and usually occurs in young adults. Presentation of case: This report presents a case of synovial sarcoma in a 15-year-old male patient who sought medical treatment for painful symptoms and associated dysphagia. The lesion was nodular, extensive, localized in the parotid region, and extended to the left cervical region. The patient was treated in a referral hospital with a treatment protocol that initially included chemotherapy for six months and surgery to attempt to excise the lesion, but the surgery was ineffective because removal could have damaged important vital structures. The Computed Tomography scan showed a hypodense area with diffuse growth and no involvement of the facial bones and the histopathological analysis revealed pleomorphic and oval spindle cells with rounded epithelial cells that formed nests surrounded by fibrous tissue. The Immunohistochemistry analysis was conclusive for the diagnosis of a high-grade SS in the parotid and left cervical regions. The medical team opted for palliative treatment with cervical radiotherapy. The patient remained hospitalized for four months after the surgery and died after 15 months since the diagnosis for compromise of airway by fast tumor growth. Conclusion: The synovial sarcoma, when diagnosed late may reduce the survival of patients because of the complications that tumor growth can bring to the prognosis and quality of life.

RESUMO Sarcomas sinoviais são neoplasias raras e agressivas, localizadas na região da cabeça e pescoço e geralmente ocorrem em adultos jovens. Relato do caso: este relato apresenta um caso de sarcoma sinovial em um paciente de 15 anos que procurou tratamento médico para sintomas dolorosos e associados à disfagia. A lesão era nodular, extensa, localizada na região da parótida e estendida à região cervical esquerda. O paciente foi tratado em um hospital de referência com um protocolo de tratamento que inicialmente incluiu quimioterapia por seis meses e cirurgia para tentar excisar a lesão, mas a cirurgia foi ineficaz porque a total remoção do tumor poderia comprometer estruturas vitais importantes. A tomografia computadorizada mostrou uma área hipodensa com crescimento difuso, sem envolvimento dos ossos faciais, e a análise histopatológica revelou células fusiformes pleomórficas e ovais, com células epiteliais arredondadas formando ninhos rodeados por tecido fibroso. A análise imunohistoquímica foi conclusiva para o diagnóstico de um sarcoma sinovial de alto grau na região cervical parotídea esquerda. A equipe médica optou pelo tratamento paliativo com radioterapia cervical. O paciente permaneceu hospitalizado por quatro meses após a cirurgia e faleceu 15 meses após o diagnóstico, devido à obstrução das vias aéreas pelo rápido crescimento tumoral residual. O sarcoma sinovial, quando diagnosticado tardiamente pode reduzir a sobrevida dos pacientes por causa de complicações que o crescimento do tumor pode trazer para o prognóstico e qualidade de vida.

Embryonal rhabdomyosarcoma in the maxillary sinus with orbital involvement in a pediatric patient: Case report.

This report presents a case of embryonal rhabdomyosarcoma (eRMS) located in the left maxillary sinus and invading the orbital cavity in a ten-year-old male patient who was treated at a referral hospital. The images provided from the computed tomography showed a heterogeneous mass with soft-tissue density, occupying part of the left half of the face inside the maxillary sinus, and infiltrating and destroying the bone structure of the maxillary sinus, left orbit, ethmoidal cells, nasal cavity, and sphenoid sinus. An analysis of the histological sections revealed an undifferentiated malignant neoplasm infiltrating the skeletal muscle tissue. The immunohistochemical analysis was positive for the antigens: MyoD1, myogenin, desmin, and Ki67 (100% positivity in neoplastic cells), allowing the identification of the tumour as an eRMS. The treatment protocol included initial chemotherapy followed by radiotherapy and finally surgery. The total time of the treatment was nine months, and in 18-mo of follow-up period did not show no local recurrences and a lack of visual impairment.