Diagnosis of<unk>  is based on observation of the symptoms of the condition. Tests examining jaw jerk and gag reflex can also be performed. It has been suggested that the majority of patients with pathological laughter and crying have<unk>  due to bilateral corticobulbar lesions and often a bipyrimidal involvement of arms and legs. To further confirm the condition, MRI can be performed to define the areas of brain abnormality.
Pseudobulbar palsy
Bulbar palsy
Trigeminal trophic syndrome
Subacute myelo-optic neuropathy
Trigeminal autonomic cephalgia
Todd's paresis
Central facial palsy
Cerebellopontine angle syndrome