"Acute haemorrhagic encephalomyelitis (AHEM), also known as acute haemorrhagic leukoencephalitis (AHLE), Hurst disease or Weston Hurst syndrome, is a very rare form of demyelinating disease. It occurs sporadically and may be considered as the most severe form of acute disseminated encephalomyelitis (ADEM) and is characterised by an acute rapidly progressive fulminant inflammation of the white matter. The cause is unclear but may be post-infectious (either viral or bacterial)."
"associated punctate haemorrhages and extensive mass effect and surrounding oedema."
"cortical involvement is more suggestive of HSV encephalitis"
"Acute haemorrhagic encephalomyelitis (AHEM), also known as acute haemorrhagic leukoencephalitis (AHLE), Hurst disease or Weston Hurst syndrome, is a very rare form of demyelinating disease. It occurs sporadically and may be considered as the most severe form of acute disseminated encephalomyelitis (ADEM) and is characterised by an acute rapidly progressive fulminant inflammation of the white matter. The cause is unclear but may be post-infectious (either viral or bacterial)."
"AHEM may more commonly occur in young adults, contrary to ADEM, which is more commonly diagnosed in children 5. It has been reported in older adults 6. There is no gender predilection."
"Patients present with fever, neck stiffness, fatigue, headache, nausea and vomiting, seizures and coma."