Subarachnoid hemorrhage associated with epidemic hemorrhagic fever: a rare case report.

Nervous system injuries associated with epidemic hemorrhagic fever (EHF) are not rarely seen. However, cerebrovascular disease arising from EHF is rarely reported in the literature. A 50-year-old male patient suffered from subarachnoid hemorrhage (SAH). No abnormal condition was found in intracranial vascular digital subtraction angiography (DSA). But, this patient presented with positive hantavirus-IgM and IgG, with typical clinical process, which lead to the diagnosis of EHF followed by SAH. To our knowledge, SAH associated with EHF has not been previously reported. A meticulous assessment of EHF patients with a serious condition had one or more central nervous system (CNS) abnormalities, such as sudden headache, vomiting, confusion, meningismus, and convulsions, which is necessary for diagnosing and giving timely treatment to improve the prognosis.