Fig. 3From: Intracranial mass lesions and skin discoloration in the armpits as unusual clues to Erdheim-Chester disease: a case reportHistopathologic features of a skin biopsy (armpit) in a patient with Erdheim-Chester disease. Skin contains xanthomized and epithelioid histiocytes (bold arrow), some resembling Touton cells, with intermingled eosinophils. No emperipolesis is seenBack to article page