title: A nonhealing nodule in an adolescent.
authors: Departments of Dermatology.
authors: J
authors: J
authors: Dua
authors: F
authors: F
authors: Musa
authors: G
authors: G
authors: Kaushal
mesh_terms: D000293:Adolescent; D006801:Humans; D017730:Ki-1 Antigen / Q000378:metabolism; D017728:Lymphoma, Large-Cell, Anaplastic / Q000473:pathology*; D008297:Male; D012878:Skin Neoplasms / Q000473:pathology*; D013909:Thorax
chemical_list: D017730:Ki-1 Antigen