Rapidly growing juvenile xanthogranuloma in an adult: a case report

Juvenile xanthogranuloma is a benign tumor made up of non-Langerhans histiocytes that predominantly occurs in infancy and early childhood. Juvenile xanthogranuloma can be differentiated from xanthoma by the distribution of the lesions and the absence of lipid abnormalities. It usually develops on the trunk and upper and lower extremities. Histologically, xanthogranulomas show a mixed cellular dermal infiltration with histiocytes, lymphocytes, eosinophils and Touton-type multinucleated giant cells. Classically, juvenile xanthogranuloma is a disease that largely affects infants and children. We describe a rare case of juvenile xanthogranuloma that suddenly developed in the axillary region of a male adult.