Female, 55 years old, with chronic pain syndrome. The cerebral and cerebellar hemispheres and brainstem show normal signal intensity and morphology. No restricted diffusion is seen. The pattern of parenchymal and extra-axial enhancement is within normal limits.No evidence of parenchymal edema, mass, or mass effect is seen. There is no evidence of intracranial hemorrhage or abnormal extra-axial fluid. The ventricular system is normal in caliber and morphology. Short TE single voxel spectroscopy was performed on regions of predominantly gray matter, predominantly white matter and thalamus. The ratios of the major metabolic peaks are all within normal limits for their respective tissues. No abnormal peaks are identified.
1.No specific abnormalities are seen on conventional imaging of the brain to account for the patient's symptoms.2.MR spectroscopy of representative regions of the brain (gray matter, white matter and deep gray tissue) is within normal limits. No findings are seen to suggest neuronal injury or metabolic derangement.