Acute leukemia as the initial presentation of blastic plasmacytoid dendritic cell neoplasm.

Dear Editor, A 90-year-old man presented with a 1-month history of fatigue and rapidly progressive, widespread skin lesions. Axillary lymph node excisional biopsy revealed partial architecture effacement by diffuse infiltration of medium-sized cells with similar morphologic features. Skin lesions are usually the first symptom of BPDCN leading patients to seek medical advice, and without therapy, they rapidly disseminate. [Extracted from the article]