Leukemia cutis in acute myeloid leukemia signifies a poor prognosis.

Leukemia cutis (LC) is a rare neoplastic infiltration of the skin or subcutaneous tissue by leukemic cells. Because it correlates with sites of additional extramedullary involvement, it typically portends a poor prognosis. Although most cases of LC present concurrently with bone marrow infiltration, skin findings may precede systemic involvement in some cases; thus, early detection by dermatologists is essential. We report a case of a 66-year-old man who was diagnosed with acute myeloid leukemia (AML) based on the cutaneous presentation of LC.