Case Study #8

March 2026 - 66-year-old patient

A 66-year-old patient in Fort Lauderdale, FL, was admitted with a rapidly growing, painless purplish-nodule on the left cheek. Initially thought to be a cyst, the lesion has tripled in size within three months. The patient has fair skin with a history of sunburns and a basal cell carcinoma that was removed from the ear 2 years prior. The only additional notable medical history was a kidney transplant 10 years prior. Clinical examination confirmed a 2 cm, firm, non-tender, red-purple nodule on the left cheek. The dermoscopic examination indicated that the lesion displays irregular vascular patterns with no clear pigment network. A full-thickness biopsy of the lesion was taken.
What is the diagnosis?