The features are officially called cavum clouds but are sometimes nicknamed hole-punch clouds or fallstreak holes. They're so big that you can see them from the ground and in space. From the ...

A 68-year-old man with an acute lacunar cerebral infarct of the left lenticular nucleus and right-sided dysarthria ... was a cystic extension of the cavum veli interpositi (CVI), which is a ...