Case #14

Case #12

• Avidly enhancing mass with lobulated contours centered in the temporal horn of the right lateral ventricle measuring 6.5 x 5.5 x 6 cm, inseparable from the choroid plexus
• Adjacent parenchymal edema, particularly in the right temporal lobe, which may relate to tumor invasion or subependymal edema in the setting of hydrocephalus
• Tumor bulges into the adjacent cerebral parenchyma in multiple locations
• Cystic collections along the tumor margins may represent peritumoral cysts and/or isolated ventricular components
• Mild corresponding restricted diffusion
• Associated mass effect with 1.5 cm right-to-left midline shift, effacement of the third ventricle, and crowding of the basal cisterns with mass effect on the midbrain
• Dilation of the lateral ventricles consistent with obstructive hydrocephalus

Images

Choroid plexus carcinoma

Background

Imaging Findings