Basal ganglia T2 hypointensities can be caused by any of the following and is commonly remembered using the mnemonic ChOMP.
- childhood hypoxia
- old age
- multiple sclerosis
- Parkinson disease: more in globus pallidus
- Parkinson-plus syndrome: more in putamen
- deoxyhaemoglobin of haemorrhage
- haemosiderin
- calcium in certain states