▁direct ▁brain ▁stem ▁inj uries . ▁Case ▁studies ▁have ▁shown ▁that ▁in ▁patients ▁with ▁chron ic ▁sub d ural ▁h emat oma , ▁a ▁compress ive ▁de form ity ▁of ▁the ▁cr us ▁c ere b ri ▁without ▁an ▁ab normal ▁M RI ▁signal ▁may ▁predict ▁a ▁better ▁recovery ▁in ▁patients ▁with ▁K ern oh an ' s ▁not ch . ▁ ▁Tre at ments ▁There ▁is ▁no ▁special ▁treatment ▁for ▁K ern oh an ' s ▁not ch ▁since ▁treatment ▁is ▁completely ▁dependent ▁on ▁the ▁injury ▁causing ▁it . ▁The ▁pressure ▁against ▁the ▁tent or ium ▁should ▁be ▁rel ieved ▁and ▁the ▁not ch ▁should ▁go ▁away . ▁However , ▁this ▁does ▁not ▁mean ▁that ▁damage ▁to ▁the ▁motor ▁fib ers ▁disapp ears . ▁Depending ▁on ▁the ▁sever ity ▁of ▁the ▁injury , ▁there ▁may ▁or ▁may ▁not ▁be ▁persistent ▁damage ▁after ▁pressure ▁relief . ▁Ne uro log ical ▁def ic its ▁may ▁resolve ▁after ▁surg ery , ▁but ▁some ▁degree ▁of ▁def ic it , ▁especially ▁motor ▁weak ness , ▁generally ▁remains . ▁ ▁Press ure ▁relief ▁to ▁" un - not ch " ▁the ▁c ere br al ▁ped un cle ▁may ▁include ▁the ▁removal ▁of ▁brain ▁tum ors ▁and ▁blood ▁cl ots ▁or ▁the ▁su ction ▁of ▁blood ▁from ▁a ▁d ril led ▁hole ▁in ▁the ▁sk ull . ▁ ▁Case ▁studies ▁ ▁K ern oh an ' s ▁not ch ▁and ▁mis di agn osis ▁The ▁i ps il ater al ▁and ▁false ▁local izing ▁signs ▁characteristic ▁of