From the case:
Medulloblastoma (gross pathology)
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The image shows soft, fleshy tumor with areas of softening and necrosis in the center. Although the tumor appears well-circumscribed, there is usually some infiltration at the edges into the surrounding brain parenchyma.
Case Discussion
Case reproduced with permission, courtesy of Dr. Jean-Christophe Fournet, Paris, France, Webpathology.com . All rights reserved by author.