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Showing posts with the label Fractional Anisotropy

Renal Cell Carcinoma on MRI: A 6.6-cm Renal Mass With Microscopic Fat, Hypervascular Enhancement, Restricted Diffusion, and Reduced FA

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  Edited by ScholarGen MediAI Team A Multiparametric MRI Case Study of a Complex Renal Mass A renal mass discovered during a routine examination can present a deceptively simple question: Is this lesion benign or malignant? In practice, the answer rarely comes from a single MRI sequence. A modern renal mass evaluation integrates morphology, enhancement, chemical-shift imaging, diffusion characteristics, quantitative ADC measurements, and, in selected research settings, diffusion tensor imaging (DTI) and fractional anisotropy (FA). This case demonstrates how these imaging features can converge into a coherent radiologic phenotype suggestive of renal cell carcinoma (RCC), particularly a clear cell phenotype. The lesion measured approximately 59 × 66 × 57 mm , with a maximum diameter of about 6.6 cm , and was located in the interpolar-to-lower pole region of the left kidney. The most important imaging combination was: Microscopic fat + avid arterial enhancement + early wash-in + delay...