PMC5697137_01
The axial T1 (a), T2 W/FLAIR (b) image shows cerebellar vermis lesion that was hypointense on T1WI and heterogeneous on T2WI, vith perilesional edema, and triventricular hydrocephalus
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Fig1
Brain magnetic resonance imaging (MRI) showed a large cerebellar vermis lesion compressing the 4th ventricle with surrounding edema and triventricular hydrocephalus, the mass demonstrated a heterogeneous low signal on T2-weighted (Fig. 1).
Histological and Immunohistochemical findings. a: Malignant tumor proliferation with round cells HE x10 b: Tubular structures HEx20 c: Intense and diffuse membrane expression of vimentin HEx10
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Fig2
The diagnosis of medulloepithelioma was retained (Fig. 2).