ABSTRACT
Abstract Objective To evaluate the diagnostic accuracy of elastography for breast cancer identification in patients with indeterminate lesions on ultrasound. Methods This prospective, descriptive study included patients with indeterminate breast lesions in the ultrasound and with indication for percutaneous or surgical biopsy. The elastography was evaluated by qualitative analysis and by two methods for the semi quantitative analysis. Results We evaluated 125 female patients with 159 lesions, with a mean age of 47 years, and a range of 20-85 years. Ultrasound has shown to be a method with good sensitivity (98.1%), but with a lower specificity (40.6%). On the elastography qualitative analysis, the specificity and accuracy were of 80.2% and 81.8% respectively. The mean size of the lesions showed no difference in classification by elastography. For the semiquantitative elastography, the mean values of the malignant lesions were statistically higher when compared with the subcutaneous tissue or the adjacent fibroglandular tissue. The analysis of the receiver operating characteristic (ROC) curves for these two semiquantitativemethods showed that both are considered satisfactory, with an area under the curve above 0.75 and statistical significance (p < 0.0001). The best results were obtained when using the findings of combined conventional ultrasound and qualitative elastography, with 100% sensitivity and 63.2% specificity. Conclusions Elastography can be a useful complementary method, increasing the specificity and diagnostic accuracy of conventional ultrasound for the diagnosis of breast cancer in patients with indeterminate breast lesions.
Resumo Objetivo Avaliar a acurácia diagnóstica da elastografia para identificação do câncer de mama em pacientes com lesões indeterminadas por ultrassom. Métodos Estudo prospectivo, descritivo, com pacientes com lesões mamárias indeterminadas no ultrassom e indicação de biópsia percutânea ou cirúrgica. A elastografia foi avaliada por análise qualitativa e dois métodos de análise semiquantitativa. Resultados Avaliamos 125 pacientes do sexo feminino com 159 lesões, com média de idade de 47 anos, variando de 20 a 85 anos. O ultrassom mostrou ser um método com boa sensibilidade (98,1%), mas com menor especificidade (40,6%). Na elastografia da análise qualitativa, a especificidade e acurácia foram de 80,2% e 81,8%, respectivamente. A dimensão média das lesões não mostrou diferença na classificação por elastografia. Para a elastografia semiquantitativa, os valores médios das lesões malignas foram estatisticamente maiores quando comparados ao tecido subcutâneo ou fibroglandular adjacente. A análise das curvas ROC para estes dois métodos semiquantitativosmostrou que ambos são considerados satisfatórios, com área abaixo da curva acima de 0,75 e significância estatística (p < 0,0001). Osmelhores resultados foram obtidos com os achados de ultrassonografia combinada convencional e elastografia qualitativa, com sensibilidade de 100% e especificidade de 63,2%. Conclusões A elastografia pode ser um método complementar útil, aumentando a especificidade e a precisão diagnósticas do ultrassom convencional para o diagnóstico de câncer de mama em pacientes com lesões mamárias indeterminadas.
Subject(s)
Humans , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Young Adult , Breast Neoplasms/diagnostic imaging , Elasticity Imaging Techniques , Ultrasonography, Mammary , Prospective Studies , Reproducibility of ResultsABSTRACT
Objective To evaluate the diagnostic accuracy of elastography for breast cancer identification in patients with indeterminate lesions on ultrasound. Methods This prospective, descriptive study included patients with indeterminate breast lesions in the ultrasound and with indication for percutaneous or surgical biopsy. The elastography was evaluated by qualitative analysis and by two methods for the semi quantitative analysis. Results We evaluated 125 female patients with 159 lesions, with a mean age of 47 years, and a range of 20-85 years. Ultrasound has shown to be a method with good sensitivity (98.1%), but with a lower specificity (40.6%). On the elastography qualitative analysis, the specificity and accuracy were of 80.2% and 81.8% respectively. The mean size of the lesions showed no difference in classification by elastography. For the semiquantitative elastography, the mean values ââof the malignant lesions were statistically higher when compared with the subcutaneous tissue or the adjacent fibroglandular tissue. The analysis of the receiver operating characteristic (ROC) curves for these two semiquantitative methods showed that both are considered satisfactory, with an area under the curve above 0.75 and statistical significance (p < 0.0001). The best results were obtained when using the findings of combined conventional ultrasound and qualitative elastography, with 100% sensitivity and 63.2% specificity. Conclusions Elastography can be a useful complementary method, increasing the specificity and diagnostic accuracy of conventional ultrasound for the diagnosis of breast cancer in patients with indeterminate breast lesions.
Subject(s)
Breast Neoplasms/diagnostic imaging , Elasticity Imaging Techniques , Ultrasonography, Mammary , Adult , Aged , Aged, 80 and over , Female , Humans , Middle Aged , Prospective Studies , Reproducibility of Results , Young AdultABSTRACT
Idiopathic granulomatous mastitis is a rare disorder of unknown etiology. This disease occurs mostly in young women and often after the lactation period. Women usually present with a fixed, painful mass, sparing the retroareolar region, associated with skin thickening and possible ulceration that mimics carcinoma. Nipple discharge can be present and bilateral involvement may occur in up to 25% of cases. In this case report, we present a typical case of histologically confirmed idiopathic granulomatous mastitis, highlighting the imaging findings, including magnetic resonance imaging (MRI), which may favor this diagnosis and enable better clinical management of these patients.
Subject(s)
Granulomatous Mastitis/diagnostic imaging , Adult , Biopsy, Needle , Breast Neoplasms/diagnostic imaging , Diagnosis, Differential , Female , Humans , Magnetic Resonance Imaging , MammographyABSTRACT
Summary Idiopathic granulomatous mastitis is a rare disorder of unknown etiology. This disease occurs mostly in young women and often after the lactation period. Women usually present with a fixed, painful mass, sparing the retroareolar region, associated with skin thickening and possible ulceration that mimics carcinoma. Nipple discharge can be present and bilateral involvement may occur in up to 25% of cases. In this case report, we present a typical case of histologically confirmed idiopathic granulomatous mastitis, highlighting the imaging findings, including magnetic resonance imaging (MRI), which may favor this diagnosis and enable better clinical management of these patients.
Resumo A mastite granulomatosa idiopática é uma afecção rara e de etiologia desconhecida. Essa doença ocorre principalmente em mulheres jovens e frequentemente após o período de lactação. As mulheres apresentam clinicamente massa endurecida, fixa, dolorosa, poupando a região retroareolar, associada a espessamento cutâneo, podendo ulcerar, simulando carcinoma. Descarga papilar pode estar presente e o envolvimento bilateral pode ocorrer em até 25% dos casos. Neste relato, apresentamos um caso típico de mastite granulomatosa idiopática, com confirmação histológica, destacando os aspectos de imagem, incluindo a ressonância magnética (RM), que possam favorecer o diagnóstico e possibilitar um melhor manejo clínico dessas pacientes.
Subject(s)
Humans , Female , Adult , Granulomatous Mastitis/diagnostic imaging , Biopsy, Needle , Breast Neoplasms/diagnostic imaging , Magnetic Resonance Imaging , Mammography , Diagnosis, DifferentialABSTRACT
Lobular carcinoma in situ (LCIS) is associated with an increased risk of breast cancer and accounts for 1 to 2% of all breast cancers. LCIS diagnosis currently remains one of the major identifiable risk factors for subsequent breast cancer development. Imaging methods are becoming increasingly sensitive, and the consequent detection of small lesions and subtle abnormalities increases the chance of detection of in situ and invasive carcinomas, leading to a reduction in mortality. This report describes a case of a palpable complaint with abnormal imaging findings, including a solid LCIS mass.
Subject(s)
Breast Carcinoma In Situ/diagnosis , Breast Neoplasms/diagnosis , Carcinoma, Lobular/diagnosis , Female , Humans , Risk FactorsABSTRACT
Lobular carcinoma in situ (LCIS) is associated with an increased risk of breast cancer and accounts for 1 to 2% of all breast cancers. LCIS diagnosis currently remains one of the major identifiable risk factors for subsequent breast cancer development. Imaging methods are becoming increasingly sensitive, and the consequent detection of small lesions and subtle abnormalities increases the chance of detection of in situ and invasive carcinomas, leading to a reduction in mortality. This report describes a case of a palpable complaint with abnormal imaging findings, including a solid LCIS mass.
O Carcinoma Lobular in situ (CLIS) está associado a um aumento do risco de câncer de mama e representa 1-2% de todas as neoplasias mama. Atualmente, o diagnóstico de CLIS continua a ser um dos maiores fatores de risco identificáveis para o posterior desenvolvimento de câncer de mama. Os métodos de imagem estão cada vez mais sensíveis, fazendo com que a detecção de pequenas lesões e anormalidade sutis aumentemo risco de detecções de carcinomas in situ e invasivos, levando a diminuição da mortalidade. Neste relato será descrito um caso de queixa clínica palpável com alteração de achados de imagem como massa sólida de CLIS.
Subject(s)
Humans , Female , Breast Carcinoma In Situ/diagnosis , Breast Neoplasms/diagnosis , Carcinoma, Lobular/diagnosis , Risk FactorsABSTRACT
Transrectal ultrasonography-guided biopsy plays a key role in prostate sampling for cancer detection. Among interventional procedures, it is one of the most frequent procedures performed by radiologists. Despite the safety and low morbidity of such procedure, possible complications should be promptly assessed and treated. The standardization of protocols and of preprocedural preparation is aimed at minimizing complications as well as expediting their management. The authors have made a literature review describing the possible complications related to transrectal ultrasonography-guided prostate biopsy, and discuss their management and guidance to reduce the incidence of such complications.
