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FIGURE 202-1

FIGURE 202-2

FIGURE 202-3

FIGURE 202-4

FINDINGS Figure 202-1. Axial FLAIR through the inferior temporal lobes. There is a well-circumscribed hyperintense right temporal lobe mass (arrow). There is no edema. Figure 202-2. Coronal post-contrast T1WI through the mass. There is mildly heterogeneous solid enhancement (arrow). Figure 202-3. Axial ADC map through the mass. There is high diffusion with a central normal focus (arrow). Figure 202-4. Photomicrograph shows compact cellular (upper right) and loose myxoid (lower left) areas. Cells are elongated in compact areas (H&E stain).

DIFFERENTIAL DIAGNOSIS Stroke, abscess, demyelination, pilocytic astrocytoma (PA), ganglioglioma, pleomorphic xanthoastrocytoma (PXA), dysembryoplastic neuroepithelial tumor (DNET), oligodendroglioma.

DIAGNOSIS Pilocytic astrocytoma (PA) lobar.

DISCUSSION

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