title: Challenge. Epithelioid cell histiocytoma.
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis; D015622:Epithelioid Cells / Q000737:chemistry / Q000473:pathology*; D026122:Factor XIIIa / Q000032:analysis; D018219:Histiocytoma, Benign Fibrous / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D009418:S100 Proteins / Q000032:analysis; D012878:Skin Neoplasms / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D013848:Thigh
chemical_list: D014408:Biomarkers, Tumor; D009418:S100 Proteins; D026122:Factor XIIIa