persistent two sub dural fluid collections seen in the surgical bed measuring 6.4x2.3 previous 7.3x2.4 previous 2.1x5.2 previou 2.1x 6.2 cm mass lesion at upper righr frontal convexity measure 2.4x2.4 and mass lesion at upper righrt 3.4x2.3 pareital convexity measure 2.7x2 previous no acute infartion or hemorrage seen . frontal atropic changes are noted in right temporal lobe with gliosis are related to previous treatment effect m h/ o histiocytosis x , 3 times craniotomty done2007 bi lateral and 2015 jan , what is prognosis of the lesion