Photo Quiz: Adult with a Red Plaque at the Site of a Childhood Vaccination Scar

摘要

Question Based on the patient's history and physical examination, which one of the following is the most appropriate next step? * A. Intralesional steroid. * B. Skin biopsy. * C. Topical antifungal. * D. Topical emollient (e.g., petroleum jelly). * E. Topical steroid. Basal cell carcinoma is the most commonly reported neoplastic proliferation in vaccination scars and has occurred with smallpox and bacille Calmette-Guérin (BCG) vaccines.1-2 Squamous cell carcinoma,1-2 melanoma,1 dermatofibrosarcoma protuberans,3 and malignant fibrous histiocytoma4 have also been reported in vaccination scars.