-- RadioGraphics 1997; 17: 1497-1526

Figure Legend | Panel A | Panel B

Figure 1: Primary CNS B-cell lymphoma with characteristic perivascular concentration of the malignant cellular infiltrate. Panel A High-power photomicrograph (original magnification, x400, hematoxylin-eosin stain) shows a central blood vessel (arrow) surrounded by noncohesive cells with high nuclear to cytoplasmic ratios; scant cytoplasm; and pleomorphic nuclei of variable size, shape, staining density, and nucleolar prominence. Neoplastic cells (arrowheads) also infiltrate the surrounding delicately fibrillar neuropil (n) with reactive gemistocytic astrocytes. Panel B High-power photomicrograph (original magnification, x400, hematoxylin-eosin stain) shows a larger blood vessel (v) surrounded by perivascular cellular infiltrate containing numerous mitotic figures (arrowheads).

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