Taste evaluation and variation of the dysgeusia according to treatment. a (top panel). Taste evaluation performed 3 months after loss of sweet taste, conducted as shown, on the left and right of the anterior part of the tongue and globally on the posterior part. Perception of sweet was overall impaired and salt perception was normal. Bitter was only perceived at the posterior part, while sour test results changed from one evaluation to another (*). N: normal perception; D: diminished; A: abolished. b (bottom panel). Variations of the dysgeusia subjective score (DSS, light gray squares, right ordinates) according to MG composite score (MGCS, black squares, left ordinates) during the 16 months follow-up period. MG score improved in parallel with recovery in sweet perception for one year, then both scores stabilize, with an almost normal MGCS and a 60% of normal sweet perception. The high MGCS at month 5 corresponds to the MG crisis after thymoma removal.