Presentation
known case of positive COVID-19 with pneumonia, complaining of left upper limb weakness, for CT brain, to R/O CVA.
Patient Data
An incidentally noted; A rounded hyperdense well defined focal lesion is seen at the foramen of Monro of the third ventricle, most likely in keeping with a colloid cyst.
Age-related prominent ventricles and basal cisterns.
Bilateral deep white matter hypodensity of chronic ischemic changes.
Bilateral basal ganglia calcification.
Cases courtesy of Dr Aliaa Soliman
Case Discussion
known case of positive COVID-19 with pneumonia, complaining of left upper limb weakness, requested for CT brain, to R/O CVA, and was incidentally noted a typical case of a colloid cyst, with no CT evidence of acute brain insult.
The radiologic appearances of colloidal cysts are dependent on cyst ingredient. Cysts that are especially rich in protein and cholesterol tend to be hyperdense on CT as our case, hypointense on T2W sequences, and hyperintense on T1W sequences.