Case #47

CT

• Mildly hyperattenuating pineal region mass with a cystic component along its right margin
• Pineal calcification is displaced along the superior aspect of the mass
• Associated obstructive hydrocephalus at the level of the cerebral aqueduct

MRI

• Heterogeneously-enhancing pineal region mass measuring 2 x 2 x 2.1 cm with extension into the right greater than left thalami and midbrain tectum
• Mild patchy corresponding restricted diffusion
• Small internal cystic components eccentric to the right
• Associated obstructive hydrocephalus at the level of the cerebral aqueduct