Malignant histiocytosis presenting with skin ulceration.
D006258:Head and Neck Neoplasms / Q000150:complications* / Q000473:pathology; D006644:Histiocytes / Q000473:pathology; D006801:Humans; D008206:Lymphatic Diseases / Q000150:complications* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012883:Skin Ulcer / Q000209:etiology* / Q000473:pathology