Pathologic changes included microvascular congestion, and neuronal degeneration, enlarged extracelluar space and widespread petechial hemorrhage throughout the brain. 病理學(xué)上見(jiàn)微血管擴張,大腦皮層神經(jīng)細胞腫脹,細胞和血管周?chē)g隙增寬,腦實(shí)質(zhì)內散在廣泛點(diǎn)狀出血。