HBG2 and Intraventricular hemorrhage: As shown in this study, the DWI lesions were usually located in the cavity adjacent to the thin wall after basal ganglia ICH and in those accompanied by intraventricular hemorrhage, which indicated that permeating bleeding would more often occur in the deep brain tissue and may suggest that the adjacent wall was too thin to provide enough macrophages to process the extracellular methemoglobin.