Blastic natural killer(NK) cell lymphoma/leukemia is a rare NK cell malignancy of unknown etiology.It occurs in multiple sites and with a propensity for skin involvement.

• 摘要胚母自然杀手细胞淋巴瘤是一种非常罕见且原因不明的恶性淋巴瘤，它是多发性的，但以皮肤最常见。