A 63-year-old man with a history of chronic myelomonocytic leukemia (CMML) presented 2 month widespread nonpainful skin lesions. Otherwise he felt well and reported no systemic symptoms. On examination, there were nontender violaceous, firm nodules on his face, torso, arms, legs; some lesions appeared ‘bruise-like’ (Fig 1, B). An urgent diagnostic biopsy showed dermis widely infiltrated by mono...