Figure Legend
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Panel A
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Panel C
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Panel D
Figure 12:
Primary CNS lymphoma in a 48-year-old man with AIDS and a history of intravenous drug abuse who presented with altered mental status. Panel A Unenhanced axial CT scan shows a large area of low attenuation in the posterior right temporal lobe with a thin rim of subtle high attenuation (arrowheads). Peripheral low attenuation represents extensive edema that is causing cisternal effacement and uncal herniation. Panel B Contrast-enhanced axial CT scan shows intense enhancement of the rim (arrowheads), outlining a large necrotic area. Panel C Photograph of the autopsy specimen viewed from the base of the brain shows uncal herniation (u) of the right temporal lobe. Panel D Photograph of the coronally sectioned autopsy specimen shows the large necrotic mass (m) in the posterior right temporal lobe with surrounding edema—note the prominent white matter (w) on the right compared with the left—and producing mass effect on the adjacent lateral ventricle. A second necrotic mass (n) is located superiorly. Histologic findings confirmed the diagnosis of large cell lymphoma.
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Copyright © 1997 by the Radiological Society of North America