[Atypical Lewy body disease revealed by burning mouth syndrome and a pseudo-psychiatric syndrome].

INTRODUCTION

Among the degenerative diseases of the nervous system, Lewy body disease has the most psychiatric symptoms especially hallucinations, delusion and identification disorders.

CASE REPORT

We report a case of Lewy body disease that started with a burning mouth syndrome for three year as the only symptom before the development of a pseudo-psychiatric syndrome (melancholy and Capgras). None of the usual cardinal criteria were present. MRI, cerebrospinal fluid, and DAT scan findings enabled the diagnosis.

CONCLUSION

The dopaminergic hypothesis put forward in some cases of burning mouth syndrome might explain this symptom in Lewy body disease.