Objective To investigate the clinical and magnetic resonance imaging (MRI) manifestations of acute disseminated encephalomyelitis (ADEM).Methods The clinical, neuroimaging and neuropathological data of a patient with ADEM were analyzed retrospectively.Results The clinical features of the patient included acute onset,paroxysmal dizziness, nausea and vomiting. Cerebral MRI showed multiple, asymmetrical, long T1 and long T2 signals, which appeared periventricular areas and white matter regions of frontal, parietal, occipital and temporal lobe. Pathologic examination showed brain tissue denaturalization with chronic inflammation and massive inflammatory lymphocyte infiltrations in perivascular spaces. Treatments such as surgery operation, dehydration and anti-infection were invalid, while glucocorticosteroid had stable therapeutic efficacy.Conclusions When a patient presents with dizziness, nausea and vomiting, and multifocal lesions appear in the white matter of brain in MRI, the diagnosis of ADEM must be taken into concern. Curative effect of glucocorticosteroid for this disease is confirmed.

Objective To investigate the changes and correlation between nuclear factor-?B (NF-?B) expression and brain water content (BWC) in perihematoma after experimental intracerebral hemorrhage (ICH) in rats. Methods Experimental ICH models of rat were made by injecting autologous blood using stereotaxic method. The expression of NF-?B in cerebral tissues was detected by immunohistochemistry technique. At the due time, BWC was measurement by day-wet method.Results NF-?B expression increased obviously at 6 h and peaked at 48 h in ICH group(P