It is the particulars here that are unbelievable to me. Normal after hemespherectomy - sure, depending on the lobe, you will have fully intact language, hemiblindness but probably can regain motor function on the effected side after some time (depending on age). No cerebellum, nbd, cerebellum does not plan, initiate, or stop motor movement - it only corrects errors and has some putative cognitive roles.

What we have here is far more extreme: massive cortical tissue loss and compression, bilaterally. His striatum looks completely gone. There are many well studied and documented patients with far less tissue loss who suffer major cognitive and learning deficits. That makes this case here remarkable to me.