-- RadioGraphics 1997; 17: 1497-1526

Figure 4: Primary CNS lymphoma in a 63-year-old man involved in a motor vehicle accident secondary to "lack of attentiveness." The patient later experienced difficulty in ambulation, decreased spontaneous conversation, and incontinence. Panel A Unenhanced axial CT scan shows a high-attenuation region (arrow) in the left cerebral peduncle. Panel B On the corresponding contrast material_enhanced scan, the same area has intense nodular enhancement (arrow). Panel C Axial photograph of the autopsy specimen demonstrates a nodule in the left cerebral peduncle (arrow). Panel D Axial proton-density-weighted magnetic resonance (MR) image shows an ill-defined hyperintense area (arrows) in the left basal ganglia and left thalamus. Panel E Axial T2-weighted MR image shows an ill-defined area of hyperintensity in the right centrum semiovale (arrow). Panel F, Panel G Photographs of axially sliced autopsy specimens reveal discoloration of the corresponding areas, with ill-defined masses located in the left thalamus and basal ganglia region (arrows in F) and right centrum semiovale (arrow in G). Reddish discoloration is secondary to hemorrhage. Histologic findings were consistent with a diagnosis of lymphoma. In addition, a clinically unsuspected lymphoma of the right testis was found at autopsy.

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