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Age: 14 months

Sex: Male

Indication: Left-sided weakness

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Case #13


Findings for this case

  • 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

Avidly enhancing mass centered in the temporal horn of the right lateral ventricle (red arrow), consistent with a choroid plexus tumor.

Diagnosis & Discussion

Diagnosis:

Choroid plexus carcinoma


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