A 73-year-old white woman was referred for a 2-week history of a rapidly enlarging, pruritic, violaceous nodule on her abdomen. She was a long-standing heavy smoker with chronic obstructive pulmonary disease who had been diagnosed with non–small cell carcinoma of the lung 7 months earlier. Systemic workup at the time of diagnosis revealed no evidence of metastases, and chemotherapy and radiation therapy were initiated. The patient denied any fever, night sweats, weight loss, or other constitutional symptoms.