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Updated: Aug 7, 2026

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
Published on: July 28, 2013
Magnetic resonance imaging and diffusion tensor analysis of lymphomatoid granulomatosis of the brain
1Department of Radiology, Institute of Medical Science, University of Tokyo, Tokyo, Japan. kiryu-tky@umin.ac.jp
Abstract:
We present the case of a 56-year-old man suffering from acquired immune deficiency syndrome associated with lymphomatoid granulomatosis. Magnetic resonance imaging performed because of convulsions revealed an ill-defined frontal mass showing hypointense on T1WI and slightly hypointense on T2WI with surrounding edema. An elevated uptake was found on T1-201 single photo emission computed tomography consistent with a central nervous system lymphoma. However, the apparent diffusion coefficient ratio calculated from diffusion-tensor acquisitions was 1.53 and was higher than that of lymphomas in previous reports. Stereotactic brain biopsy was performed and lymphomatoid granulomatosis was confirmed.

