Presentation
The recurrent headache developed into a thunderclap Headache on the last day.
Patient Data
Age: 35 years
Gender: Male
From the case:
Colloid cyst with hydrocephalus
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There is a rim-enhanced, well-defined, rounded iso with central hyperdensity focus mass seen in the roof of the third ventricle obstructing both foramen of Monro and causing dilatation of both lateral ventricles.
Case Discussion
The above imaging findings are consistent with a colloid cyst of the 3rd ventricle causing obstructive hydrocephalus. Colloid cysts are usually nonenhanced; however, they occasionally show subtle rim enhancement as seen in our case. It can be an incidental finding or presenting with a headache as a result of obstruction at the foramen of Monro as seen in our case.
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