title: Basal cell carcinoma arising in a smallpox vaccination site.
abstract: A case of pigmented basal cell carcinoma developing in a smallpox revaccination site is presented. Any progressive change within a smallpox vaccination scar should be thoroughly evaluated and treated appropriately after tissue diagnosis.
mesh_terms: D000328:Adult; D002280:Basal Cell Carcinoma / Q000209:etiology*; D002921:Cicatrix / Q000150:complications; D005260:Female; D006801:Humans; D008875:Middle Aged; D012878:Skin Neoplasms / Q000209:etiology*; D012899:Smallpox / Q000517:prevention & control*; D014611:Vaccination / Q000009:adverse effects*