XANTHOGRANULOMA IN AN ADULT AND CUTANEOUS MASTOCYTOSIS

Xanthogranuloma (XG) is a rare disease in adults. The authors report a case of XG in an 20 years-old woman. This observation is particulary interesting: First by the pathology of the cutaneous lesion which show ed a dermal infiltrate composed of histiocytes and a few foamy cells b ut without Touton giant cells. Second by is association with a mastocy tosis which disappeared when XG appeared. These data led the authors t o discuss the misleading histology pattern of XG and also the pathogen esis of XG. In our case. it would appeared as a benign reactive proces s against mastocytosis.