免疫母细胞肉瘤(Immunoblastic Sarco-ma),简称IBS,或免疫母细胞淋巴肉瘤,又名干细胞淋巴瘤,是一类比较罕见而高度侵袭性的恶性淋巴瘤。病理上是单一形态的免疫母细胞恶性增生,累及淋巴结、肝、脾和骨髓并可扩散全身各内脏。临床上多见于老年人,常有各种免疫异常性疾患的病史,常呈急性经过,短期内死亡。但也有经治疗或自发消退的个别报导。Dameshek 用“免疫母细胞”一词描写有丰富嗜派若林胞浆的大淋巴细胞,即T 和B 细胞受抗原刺激后的转化淋巴细胞。故此瘤有B 免疫母细胞肉瘤和T 免疫母细 Immunoblastic Sarco-ma, IBS, or immunoblastic lymphosarcoma, also known as stem cell lymphoma, is a rare and highly aggressive malignant lymphoma. Pathologically, it is a single form of malignant proliferation of immune mother cells, involving the lymph nodes, liver, spleen, and bone marrow and can spread the body’s internal organs. Clinically more common in the elderly, often have a variety of immune abnormalities in the disease history, often an acute passage, short-term death. However, there are also individual reports of treatment or spontaneous regression. Dameshek used the term “immune mother cells” to describe large lymphocytes that have abundant cytoplasmic cytoplasm, ie, T and B cells transformed with antigen-stimulated lymphocytes. Therefore, this tumor has B immunosuppressor sarcoma and T-immune masterbatch