RESUMEN
INTRODUCTION: Bone metastasis is seen in 2.3-12.7% of thyroid follicular carcinomas. Bone metastasis most commonly occurs in the vertebrae, costas and hip bones. In this report we discuss the diagnosis and treatment of a patient followed up due to skull metastasis of thyroid follicular carcinoma in light of literature. CASE REPORT: A 51-year-old female patient underwent surgery due a mass in the scalp. The histopathological examination was reported as metastasis of follicular thyroid carcinoma. No radiotherapy was indicated because of the total excision of the mass and the benign surgical margins. The patient, in whom fine needle aspiration biopsy showed the result of follicular carcinoma underwent a total bilateral thyroidectomy. Whole-body I-131 scintigraphy revealed diffuse activity involvement in the thyroid gland, and lung and bone (skull, sacrum, right acetabulum) metastasis. The patient was scheduled for radioactive iodine therapy. CONCLUSION: Total/near total thyroidectomy and metastasectomy should be the treatment of choice in skull metastasis. Postoperative radioactive iodine and radiotherapy should be offered. Radiotherapy should be reserved for inoperable and residual tumour cases.
Asunto(s)
Adenocarcinoma Folicular/patología , Neoplasias Craneales/radioterapia , Neoplasias Craneales/secundario , Neoplasias de la Tiroides/patología , Adenocarcinoma Folicular/cirugía , Biopsia con Aguja Fina , Femenino , Humanos , Radioisótopos de Yodo , Imagen por Resonancia Magnética , Persona de Mediana Edad , Radioterapia/métodos , Neoplasias Craneales/diagnóstico por imagen , Neoplasias de la Tiroides/cirugía , Tiroidectomía , Tomografía Computarizada por Rayos XRESUMEN
INTRODUCTION: Recently, numerous studies have been carried out to explain the genetics and immunopathogenesis of Behçet's disease (BD). There is still insufficient understanding of its etiopathogenesis, but substantial genetic and immune system abnormalities have been suggested. Several studies have shown remarkable associations of ABO blood groups with various diseases. This study investigated the relationship between ABO and Rhesus (D) blood groups and Behçet's disease in Turkish patients. METHODS: Clinical data on gender, ABO, and Rhesus blood type of patients with BD were collected at the Kayseri Education and Research Hospital from 2005 to 2012. A total of 115 patients with BD were assessed for their association with ABO or Rhesus (D) blood groups and compared with the distribution of the blood groups of 25,701 healthy donors admitted to the Kayseri Education and Research Hospital Blood Center in 2010 and 2011. RESULTS: The distribution of ABO and Rhesus blood groups in patients with BD was similar to the healthy donors. No relationship was found between ABO or Rhesus blood groups and BD at our hospital. CONCLUSION: Further studies with a larger series and in different centers may be valuable for identifying the association between ABO or Rhesus (D) blood groups and BD.
Asunto(s)
Sistema del Grupo Sanguíneo ABO , Síndrome de Behçet/sangre , Síndrome de Behçet/inmunología , Sistema del Grupo Sanguíneo Rh-Hr , Estudios de Casos y Controles , Femenino , Humanos , Masculino , TurquíaRESUMEN
OBJECTIVES: The aim of this study was to investigate the effect of pre- and postoperative bleaching with 10% carbamide peroxide on marginal leakage of amalgam and resin composite restorations. METHOD AND MATERIALS: Three groups were made using 30 extracted, caries-free third molars (n = 10). In the preoperative group, bleaching was performed with 10% carbamide peroxide, followed by the placement of resin composite and amalgam restorations on Class V cavity preparations. In the postoperative group, bleaching was performed after the resin composite and amalgam restorations were fabricated. The third group served as a control in which no bleaching was performed. Dye penetration was used for evaluation of marginal leakage. RESULTS: Chi-square test showed that marginal leakage of resin composite restorations increased in both pre- and postoperatively bleached groups, but marginal leakage of amalgam restorations showed no alterations. CONCLUSION: Bleaching with carbamide peroxide may alter the marginal leakage of resin composite restorations, but amalgam restorations are not affected adversely in vitro.
Asunto(s)
Resinas Compuestas , Amalgama Dental , Filtración Dental/clasificación , Restauración Dental Permanente , Blanqueamiento de Dientes , Peróxido de Carbamida , Distribución de Chi-Cuadrado , Colorantes , Resinas Compuestas/química , Amalgama Dental/química , Preparación de la Cavidad Dental/clasificación , Restauración Dental Permanente/clasificación , Combinación de Medicamentos , Humanos , Oxidantes/uso terapéutico , Peróxidos/uso terapéutico , Propiedades de Superficie , Termodinámica , Factores de Tiempo , Urea/análogos & derivados , Urea/uso terapéuticoRESUMEN
OBJECTIVE: The aim of this in vitro study was to evaluate the tensile bond strength values between polyacid-modified resin composite ("compomer") and resin composite materials under different conditions. METHOD AND MATERIALS: There were five experimental groups in the study. In group A, resin composite was placed directly on polyacid-modified resin composite surfaces. In group B, bonding agent was applied to polyacid-modified resin composite surfaces and then resin composite was placed on the compomer. In group C, compomer specimens were stored for 1 week and then resin composite was placed directly on these aged compomers. In group D, compomer specimens were again stored for 1 week, and then the bonding agent and resin composite were applied to the compomer surfaces. In group E, the surfaces of aged (1 week) compomers were roughened before the bonding agent was applied and the resin composite was placed on the prepared surfaces. A statistical analysis of the results was made with the Kruskal-Wallis test method. RESULTS: The mean tensile strength values of the groups were as follows: group A = 12.84 MPa; group B = 15.03 MPa; group C = 10.60 MPa; group D = 11.56 MPa; group E = 24.87 MPa. There were statistically significant differences between groups E and A; groups E and C; groups E and D; and groups C and B. CONCLUSION: Mechanical roughening of a polyacid-modified resin composite surface was found to be the most effective factor in increasing the tensile bond strength between an aged compomer and a resin composite.