Presentation
Headaches increasing in severity for longer than 1 month, nausea and dizziness.
Patient Data
Selected CT images demonstrating a posterior fossa mass, centered in the upper portion of the vermis containing cystic and solid components with significant effacement of the forth ventricle and diffuse dilatation of the supratentorial ventricles.
Predominantly solid mass arising from the vermis with cystic components and restricted diffusion.
There is a marked mass effect, including effacement of the fourth ventricle and infratentorial CSF cisterns with low-lying cerebellar tonsils.
Expected postsurgical changes following recent resection of the posterior fossa mass. Right transparietal approach shunt in appropriate position.
Case Discussion
Classic features of medulloblastoma, histologically confirmed as SHH-activated and TP53 Wildtype (WHO grade IV).
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