[ @entity74 during XXXX relapse].

@entity1 @entity75 @entity409 @entity262 @entity1702 @entity74 @entity4838 @entity370 @entity15
@entity409 is a known but uncommon element in the course of @entity15 . @entity409 has been described during the chronic progressive phase and during the relapse phase. We report five @entity1 with clinically definite @entity15 who developed transient @entity74 during the relapse phase of their disease. Agueusia occurred as one of the first symptoms in three @entity1 , revealing the disease. Symptoms generally improved with remission or corticosteroid administration. These disorders are due to demyelinating lesions of the gustatory pathways in the thalamus or brainstem. MRI studies were not performed during the relapse phase and no clinical neuroimaging correlations could be established. Agueusia may be accompanied by @entity4838 which is due to plaque demyelinization of the olfactory pathways, particularly in the temporal and @entity75 . @entity1702 can also be observed in other diseases, including @entity262 such as @entity370 or Sjogr  n's syndrome. Drug-induced @entity74 are also reported.
