Fig. 2
From: The value of quantitative diffusion tensor imaging indices of spinal cord disorders
A 22-year-old male patient presented with low back pain of two-month duration, with progressive left foot drop. Sagittal and axial T2-weighted (A, C), sagittal T1-weighted image precontrast (B), sagittal, coronal axial, and post-contrast T1-weighted images (D–F). The terminal part of the spinal cord and conus medullaris region show expansile solid appearing space occupying mass lesion. The lesion shows bright T2 signal intensity with isointense signal intensity in T1WI. It shows irregular peripheral post-contrast enhancement. Diagnosis: Myxopapillary ependymoma. Sagittal trace (G), ADC (H), grayscale FA (J), color-coded FA (K) and 3D MR tractography (L, M) images. Trace image shows areas of mixed restricted and facilitated diffusion within the space occupying mass lesion. High ADC value and low FA values. The tractograms show widely separated fiber tracts with frank fiber disruption