title: Basal cell epithelioma in a vaccination scar.
abstract: A 42-year-old woman developed a superficial basal cell epitheliol in a smallpox vaccination scar. After reviewing similar reports in the English literature, I believe any unusual change occurring in a vaccination scar, either simultaneously or years later, should be viewed as a possible malignancy and treated accordingly.
mesh_terms: D000328:Adult; D002280:Basal Cell Carcinoma / Q000209:etiology*; D002921:Cicatrix / Q000209:etiology*; D005260:Female; D006801:Humans; D012878:Skin Neoplasms / Q000209:etiology*; D014611:Vaccination / Q000009:adverse effects*