[Ulcers of the tongue, pityriasis lichenoides and primary parvovirus B19 infection].

INTRODUCTION

We report a case of parapsoriasis en gouttes (or pityriasis lichenoides) which presents two peculiarities. First, the patient had lingual ulcerations and second, the eruption appeared during a seroconversion for Parvovirus B19.

OBSERVATION: A 25 old woman presented a first episode of characteristic parapsoriasis en gouttes associated with purpuric palmoplantar lesions and lingual ulcerations, reaching deep muscular in histology.

DISCUSSION: This observation of parapsoriasis en gouttes, peculiar because of lingual ulcerations, is mostly interesting because of its association with a primo-infection to Parvovirus B19. The receptor of the virus is localised on endothelial cells and that could explain purpuric lesions and ulcerations observed.