CT - CT brain
non-contrast
What is the main finding?
A well circumscribed hyperdense mass is located in the pineal region / dorsal midbrain resulting in obstructive hydrocephalus.
What can account for hyperdensity such as this?
Dense cellularity (e.g. meningioma or lymphoma), microcalcifications (e.g. psammoma bodies in meningioma) or blood (e.g. haemangioma, haemorrhagic mass (e.g haemorrhagic metastasis)).
In the region of the pineal gland or mesencephalic tectum is a large well circumscribed hyperdense mass. The ventricles are enlarged and sulci effaced consisted with hydrocephalus.