What is the differential for these foci of signal drop out?
Microhaemorrhages, small cavernomas and multiple calcified granulomas (e.g neurocysticercosis).
Which do you favour and why?
Microhaemorrhges due to hypertension, due to the distribution.
Multiple punctate regions of signal drop out and blooming best seen on gradient echo imaging, predominately of the basal ganglia and cerebellum.