The importance of the dentist in the diagnosis of cowden syndrome – Case report

Cowden Syndrome is an autosomal dominant disorder characterized by the development of several hamartomas in a variety of tissues, including the skin, gastrointestinal tract, adipose tissue, and bone and connective tissues. This syndrome is associated with a high risk of developing malignancies, especially breast, thyroid and endometrium cancers. This report presents a case of a 53-year-old patient who sought assistance at the Dentistry Department of the University Hospital of Brasilia (HUB) to receive basic dental treatment. The current and past medical history and oral and facial manifestations led to the diagnosis of Cowden syndrome. This case report aims to highlight the importance of a dental surgeon in the diagnosis of this syndrome, based on the observation of oral manifestations and medical history.

A Síndrome de Cowden é uma desordem hereditária autossômica dominante, caracterizada pelo desenvolvimento de diversos hamartomas em vários tipos de tecidos, incluindo a epiderme, trato gastrointestinal, tecido adiposo e tecidos ósseo e conjuntivo. Essa síndrome é associada a um risco elevado de desenvolvimento de malignidades, especialmente câncer de mama, tireoide e endométrio. Esse relato apresenta o caso de um paciente de 53 anos de idade que procurou o Departamento de Odontologia do Hospital Universitário de Brasília (HUB) para tratamento dental básico. História médica atual e passada e manifestações orais e faciais levaram ao diagnóstico de síndrome de Cowden. Este relato de caso apresenta a importância do cirurgião-dentista no diagnóstico desta síndrome, com base na observação das manifestações orais e história médica.

Relationship between pre-sarcopenia, sarcopenia and bone mineral density in elderly men

Objective Analyze the influence of sarcopenia in bone health of elderly men. Subjects and methods This cross-sectional study evaluated 198 men aged over 60 years. Body composition was measured by dual energy X-ray absorptiometry. The BMD was measured at the femoral neck, total hip, lumbar spine and 33% radius. The diagnosis of abnormal BMD was defined for men who presented densitometric diagnosis of osteopenia or osteoporosis defined by T-score of femoral neck, total hip and lumbar spine. The pre-sarcopenia and sarcopenia were defined according to the European Working Group on Sarcopenia in Older People. Results The group diagnosed with normal BMD, compared to the group of abnormal BMD, have significantly higher body weight, body mass index, grip strength, lean mass, fat mass, and relative appendicular skeletal muscle mass (RASM). However, after multiple linear regression analysis, we found that only the RASM, lean mass, and handgrip strength in the dominant hand influenced the variability of the BMD after adjustment for age and weight. Regression analyzes showed a positive association between greater appendicular lean mass and a smaller number of elderly patients with abnormal BMD diagnostic. The regression analyzes showed that elderly men diagnosed with pre-sarcopenia and sarcopenia had more abnormal BMD than non-sarcopenic elderly men. Conclusion We concluded that pre-sarcopenia and sarcopenia were associated with abnormal BMD. The lean mass, compared to fat mass, has a greater positive influence on the BMD of elderly men. This result suggests the importance of the increase in lean mass for the bone health of elderly men. Arch Endocrinol Metab. 2015;59(1):59-65 .

Ultrassonometria do calcâneo, densitometria óssea e morfometria vertebral em homens com idade acima de 60 anos / Quantitative ultrasound of the calcaneus, bone densitometry and vertebral morphometry in men over the age of 60 years

OBJETIVOS: Comparar a ultrassonometria do calcâneo com a densitometria óssea na avaliação de fraturas vertebrais morfométricas em homens acima de 60 anos. SUJEITOS E MÉTODOS: Foram analisados 96 homens com mais de 60 anos por meio de densitometria óssea da coluna, fêmur e rádio, radiografia lateral da coluna torácica e lombar e ultrassonometria do calcâneo. RESULTADOS: Cinquenta e um por cento dos homens apresentaram osteoporose e fraturas vertebrais. Foi observada correlação entre índice de stiffness e T-score da ultrassonometria e as densidades minerais ósseas (DMO) de todos os sítios. Quanto à presença de fraturas, identificou-se correlação com a DMO do rádio ultradistal e 33%. Por meio da curva ROC, observou-se acurácia da DMO do rádio UD na detecção de fraturas vertebrais. CONCLUSÕES: Nosso estudo mostrou correlação entre a ultrassonometria e a densitometria no diagnóstico de osteoporose em homens acima dos 60 anos. Também se identificou correlação entre fratura vertebral morfométrica e a DMO do rádio.

OBJECTIVES: To compare calcaneal ultrasonometry and bone densitometry in the evaluation of morphometric vertebral fractures in men over 60 years of age. SUBJECTS AND METHODS: We studied 96 men over 60 years of age by means of bone densitometry of the spine, femur and radius, lateral radiograph of the thoracic and lumbar spine, and calcaneal ultrasonometry. RESULTS: Fifty-one percent of men had osteoporosis and vertebral fractures. Correlation was found between ultrasonometry stiffness index, T-score and bone mineral density of the spine, femur and radius (p < 0.01). Regarding the presence of fractures, there was a correlation only with BMD of the ultradistal radius (UD) and radius 33%. ROC curve showed accuracy only of UD radius BMD in detecting vertebral fractures. CONCLUSIONS: Our study showed a correlation between osteoporosis diagnosis by ultrasonometry and densitometry in men over 60 years. It also showed a correlation between morphometric vertebral fracture and bone mineral density of the forearm.

Oral cancer staging established by magnetic resonance imaging

The aim of this study was to compare clinical staging and magnetic resonance imaging (MRI) staging for oral cancer, and to assess inter-observer agreement between oral and medical radiologists. A total of 10 patients diagnosed with oral cancer were assessed before treatment. A head and neck surgeon performed clinical TNM staging. Two medical radiologists and two oral radiologists performed a new staging assessment by interpreting MRI scans, without prior knowledge of the clinical staging. They evaluated the extent of the primary tumor (T), metastasis to regional lymph nodes (N) and grouping by stages. The data were analyzed using the Kappa Index. There was significant agreement (p < 0.05) between the clinical and MRI staging assessments made by one oral radiologist for N stage, and between those made by one medical radiologist for the T and N stages and for the grouping by stages. In the MRI assessment, there was significant agreement among all four observers for both T stage and grouping by stages. For the N stage, there was no significant agreement between one oral radiologist and one medical radiologist or between both medical radiologists. There was significant agreement among the remaining radiologists. There was no agreement between the clinical and MRI staging. These results indicate the importance of using MRI for the diagnosis of oral cancer. Training initiatives and calibration of medical and oral radiologists should be promoted to provide an improved multidisciplinary approach to oral cancer.

Ressonância magnética no diagnóstico do câncer de boca: revisão da literatura e relato de caso / MRI in the diagnosis of mouth cancer: review and case report

OBJETIVO: Revisar a literatura concernente à utilização da ressonância nuclear magnética no estadiamento do câncer de boca e apresentar caso de neoplasia maligna onde a RNM contribuiu para a detecção da lesão em tecidos moles. RESULTADO E DISCUSSÃO: A RNM é a ferramenta de imagem que evolui com maior rapidez em diagnóstico na área de saúde. Suas vantagens principais são a alta resolução dos tecidos moles e ausência de risco biológico aos pacientes. Com estas qualidades, pode ser usada para detalhar a anatomia, permitindo melhor estadiamento das lesões no câncer bucal, contribuindo igualmente para o diagnóstico precoce de possíveis recidivas. No caso apresentado(neoplasia maligna de pequeno tamanho), a RNM contribuiu para a detecção da lesão em tecidos moles, na extensão da lesão e no planejamento cirúrgico.

OBJECTIVE: To review the literature about cancer staging by using magnetic resonance image (MRI) and to present a case to illustrate the utility of this image diagnosis tool. RESULTS AND DISCUSSION: MRI is the fastest evolving imaging tool for diagnosis in health area. Its main advantages include a high detail resolution soft tissue and no biological risks to patients. Thus, it can be used to evaluate the detailed anatomy of structures, allowing better staging for treatment of patients with oral cavity cancer as well as better assessment of possible post-surgical treatment and/or radiotherapy changes. Early detection of relapses is also a key advantage, which might lead to appropriate monitoring, and protocols that could greatly improve patients’welfare. The present case study illustrates the difference between the CT scan and MRI in the analysis of a small lesion, where CT scan yielded no information on clinical staging while MRI was decisive in the soft tissue injury view, extent of lesion and adequate surgical planning.

Periostite proliferativa associada a dens in dente

Proliferative periostitis is a disease characterized for successive deposition of layers of subperiosteal bone as a response reaction to a chronic inflammatory stimulation. The affected periosteum forms several rows of reactive bone that are parallel and expand the surface of the altered bone. Dens in dente is a developmental malformation resulting from invagination of the crown before calcification has occurred. They are usually diagnosed upon routine clinical and radiographic examination. An unusual case report of a mandibular dens in dente causing proliferative periostitis is presented. The source of infection was related to dens in dente in mandibular left second premolar's crown, which had apparently communication with periodontal tissues. It was successfully treated by surgical therapy with antibiotic duringthe treatment. After the extraction of the affected tooth, radiographic follow-up showed the decrease of proliferative periostitis, and remodelation of the cortical bone.

A periostite proliferativa é uma doença caracterizada por sucessivas deposições de camadas de osso subperióstica como resposta a um estímulo crônico inflamatório. O periósteo afetado forma sucessivas camadas de osso reacional paralelas entre si e expandem a superfície óssea nesse local. Dens in dente é uma alteração do desenvolvimento resultante de invaginação de esmalte para a dentina antes de sua calcificação ocorrer. Usualmente são diagnosticadas em exames clínicos-radiográficos de rotina. Um relato de caso clínico raro é apresentado sobre dens in dente na coroa do segundo pré-molar inferior causando periostite proliferativa. A fonte de infecção foi o dens in dente que tinha comunicação do meio bucal com a área do periodonto. Foi realizada a extração do dente anômalo associado com uso de antibióticos. As radiografias de controle mostraram diminuição da periostite proliferativa como remodelamento do osso cortical.

Seqüelas dentomaxilofaciais em crianças submetida a tratamento multimodal para rabdomiossarcoma / Dentomaxillofacial sequelae in a Child Reated for Rhabdomyosarcoma

O rabdomiosarcoma é o sarcoma de tecidos moles mais comum em crianças e adolescentes. A multimodalidade terapêutica para tumores de cabeça e pescoço, embora eficaz, pode resultar em uma variedade de complicações orais, com efeito significativo sobre o crescimento esquelético maxilomandibular e sobre o desenvolvimento dentário.Neste relato de caso, discutem-se as principais anormalidades tardias encontradas em um sobrevivente pediátrico que teve o tumor, o qual foi irradiado em estádio precoce do desenvolvimento dental. As anormalidades dentomaxilofaciais encontradas incluíram defeitos de esmalte, encurtamento radicular, microdontia, agenesia dentária, mobilidade dentária, micrognatia e assimetria facial. As morbidades cosméticas e funcionais encontradas exigem acompanhamento em longo prazo para melhorar a qualidade de vida da criança após o tratamento da lesão.

Rhabdomyosarcoma is the most common soft tissue sarcoma in children and adolescents. Multi-modality therapy for tumors in the head and neck region may result in a variety of oral complications, with a significant effect on maxillofacial skeletal growth and dental development. This article reports on major oral abnormalities in one long-term survivor of paediatric head and neck rhabdomyosarcoma who had irradiation at an early stage of their teeth’s development. Dentomaxillofacial abnormalities found included enamel defects, disturbance in the root development, microdontia, tooth agenesis, severe dental mobility, micrognatia and facial asymmetry. In addiction, the cosmetic and functional morbidity require follow-up over time to improve patients’ quality of life in survivors of oncologic treatment.

Radiografia panorâmica: instrumento auxiliar no diagnóstico da osteoporose: [revisão] / Panoramic radiograph: auxiliary tool in the diagnosis of osteoporosis: [review]

A osteoporose é considerada um problema de saúde pública pela Organização Mundial de Saúde (OMS). A identificação de indivíduos com baixa densidade mineral óssea e alto risco para fratura associada à osteoporose e o estabelecimento de estratégias específicas de prevenção de fraturas são o alicerce de qualquer programa preventivo de osteoporose. O passo seguinte a esse reconhecimento seria o encaminhamento destes indivíduos para realização de densitometria óssea, exame considerado padrão-ouro para o diagnóstico da doença. No entanto, o custo e a falta de acesso da população ao exame são fatores que dificultam a utilização da densitometria como método de rastreamento populacional para a osteoporose. A radiografia panorâmica é importante na rotina de pacientes idosos, particularmente antes da colocação de próteses totais e implantes em edêntulos. Existem medidas qualitativas e quantitativas realizadas nas radiografias panorâmicas, denominadas índices radiomorfométricos, que podem ser capazes de identificar mulheres na pós-menopausa com indicação de realização de densitometria óssea. O objetivo principal deste artigo é discutir a importância da radiografia panorâmica como ferramenta auxiliar no diagnóstico da osteoporose e de baixa densidade mineral óssea.

Osteoporosis is considered as a public health problem by World Health Organization. The identification of subjects at risk of fractures and with low bone mineral density is the basis of any preventive osteoporosis program. Then, high risk individuals should be referred for dual X-ray absorptiometry (DXA). DXA is considered the gold standard of bone mineral density assessment. Nevertheless, bone densitometry has a limited availability for routine use in population screening. Panoramic radiography is conducted routinely in elderly populations, especially for edentulous patients before treating with complete denture or implants. Some panoramic radiographic measurements, also known as panoramic radiomorphometric indices, may identify postmenopausal women that should perform bone densitometry. The main purpose of this paper is to discuss the importance of panoramic radiography as an auxiliary tool in the diagnosis of osteoporosis and low bone mineral density.