PMC3205502_01
Axial MRI view. A heterogeneously enhanced lesion may be appreciated in the pineal region. An artifact generated by a ventriculoperitoneal shunt catheter is noticed. No leptomeningeal enhancement is observed
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F1
Magnetic resonance imaging (MRI) showed a pineal irregular mass occupying the superior cerebellar and quadrigeminal cisterns with hyposignal on T1, medium signal on T2 and heterogeneous enhancement after gadolinium injection [Figure 1].
Histopathologic view. Cells of several shapes may be seen arranged in a lobular manner. They exhibit an eosinophilic cytoplasm with intervening epithelial and intracellular mucin containing cells. Thin-walled vessels surrounded by a fibrous framework may be appreciated
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F2
They were arranged in cords and sheets and exhibited an eosinophilic cytoplasm with intervening epithelial and intracellular mucin containing cells [Figure 2].