"H1: acute onset of limb(s) weakness, period from onset to nadir hours to 10 days"
"The AFM working group suggests the following items on history, examination, and investigations to make a diagnosis of acute flaccid myelitis 2:"
"definite: H1, E1, E2, E3, MRI, and CSF criteria present; H2 criteria can be present or absent"
"probable: H1, E1, E2, E3, and MRI criteria present; H2 criteria can be present or absent; CSF criteria absent or not done"
"possible: H1, E1, and MRI criteria present; H2, E2, and E3 criteria can be present or absent, CSF criteria can be present, absent, or not done"
"uncertain: H1, E1, E2, and E3 present; MRI criteria not done; CSF criteria can be present, absent, or not done"
"MRI: spinal cord lesion with predominantly grey matter involvement, with or without nerve root enhancement"
"definite: H1, E1, E2, E3, MRI, and CSF criteria present; H2 criteria can be present or absent"
"probable: H1, E1, E2, E3, and MRI criteria present; H2 criteria can be present or absent; CSF criteria absent or not done"
"probable: H1, E1, E2, E3, and MRI criteria present; H2 criteria can be present or absent; CSF criteria absent or not done"
"possible: H1, E1, and MRI criteria present; H2, E2, and E3 criteria can be present or absent, CSF criteria can be present, absent, or not done"
"uncertain: H1, E1, E2, and E3 present; MRI criteria not done; CSF criteria can be present, absent, or not done"
"uncertain: H1, E1, E2, and E3 present; MRI criteria not done; CSF criteria can be present, absent, or not done"
"possible: H1, E1, and MRI criteria present; H2, E2, and E3 criteria can be present or absent, CSF criteria can be present, absent, or not done"
"Other less common symptoms include weakness elsewhere (neck, trunk, bulbar, facial, respiratory, and extraocular muscles), bowel or bladder dysfunction, and non-specific sensory symptoms without a defined sensory level 2. Cases of concurrent brainstem encephalitis have also been reported, which may result in ataxia, autonomic dysfunction, and reduced conscious state, but this is highly atypical 2."