Early assessment by magnetic resonance imaging of possible residual lesion post radiofrequency ablation in breast cancer

BV UNIFESP: Teses e dissertaçõe

Analysis by MRI of Residual Tumor After Radiofrequency Ablation for Early Stage Breast Cancer

OBJECTIVE. the objective of our study was to evaluate the effectiveness of MRI in the detection of possible residual lesions after radiofrequency ablation (RFA) in the treatment of breast cancer.SUBJECTS and METHODS. We prospectively evaluated 14 patients who had undergone ultrasound-guided core biopsies diagnostic of invasive ductal carcinoma (IDC; range of diameters, 1.0-3.0 cm) and then ultrasound-guided percutaneous RFA with sentinel node biopsy as the primary treatment. Breast MRI was performed 1 week before RFA to evaluate tumor extension and again 3 weeks after RFA to verify the presence of possible residual lesions. Conventional surgical resection of the tumors was performed 1 week after RFA. the MRI findings were compared with histopathologic analyses to confirm the presence or absence of residual tumor.RESULTS. There was no residual enhancement in seven lesions on the postablation breast MRI scans. These findings were confirmed by negative histopathologic findings in the surgical specimens. the MRI scans of five patients showed small areas of irregular enhancement that corresponded to residual lesions. in the two remaining patients, we observed enhancement of almost the entire lesion, indicating that RFA had failed.CONCLUSION. Breast MRI is effective in detecting residual lesions after RFA in patients with IDC.Universidade Federal de São Paulo, Dept Diagnost Imaging, BR-04024000 São Paulo, BrazilUniv São Paulo, Sch Med, Hosp Clin, Canc Inst State São Paulo, São Paulo, BrazilUniv São Paulo, Sch Med, Hosp Clin, Dept Pathol, São Paulo, BrazilUniv São Paulo, Sch Med, Hosp Clin, Dept Obstet & Gynecol, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Diagnost Imaging, BR-04024000 São Paulo, BrazilWeb of Scienc

I Mostra de projetos dos cursos FIC IFPB – Campus Pedra de Fogo

Este projeto teve como objetivo desenvolver uma ação por meio do projeto de extensão intitulado de I Mostra de Projetos dos Cursos FIC – Campus Pedras de Fogo, com o objetivo dinamizar atividades voltadas à extensão através de ações direcionadas ao tema sustentabilidade e meio ambiente, constituindo-se em um momento de formação de disseminação de projetos desenvolvidos pelos discentes do Instituto Federal de Educação, Ciência e Tecnologia da Paraíba (IFPB) do Campus de Pedras de Fogo, em conjunto com a comunidade externa e parceiros sociais visando à consolidação do cenário social, por meio de uma mostra de projetos realizada a partir de plataformas digitais com apoio das mídias sociais disponíveis do campus. Esta foi a primeira edição do evento e teve como meta atingir o maior número de participantes e ouvintes na região, a fim de promover as ações sociais desenvolvida pelos estudantes dos cursos de Formação Inicial e Continuada (FIC)