伴显著淋巴结腺体肿大的inv(16)AML一例

为了探讨伴inv（16）急性髓细胞白血病（AML）预后的异质性，本研究报道1例伴有显著淋巴结腺体肿大inv（16）AML的诊治经过，并对相关的问题进行了讨论。结果显示：患者男，13岁，确诊M4Eo伴inv（16），并全身显著淋巴结肿大，予以大剂量阿糖胞苷（HDAC）的方案化疗。荧光原位杂交（FISH）技术监测疗效显示患者对HDAC反应不敏感。结论：伴有淋巴结腺体肿大的inv（16）AML对HDAC反应不敏感，预后较不伴淋巴结腺体肿大者差。inv（16）AML预后存在异质性。FISH技术是准确可靠的inv（16）检测手段，可用于监测inv（16）的微小残留病灶。

Bulky Lymphadenopathy in Acute Myeloid Leukemia with Inv (16) ( p13q22 ): A Case Report

he study was aimed to investigate the different prognosis of acute myeloid leukemia(AML) with inv(16). A 13-year-old patient diagnosed as M4Eo presenting with bulky lymphadenopathy was reported, the curative process of patients was presented and the related issues were discussed. The karyotype and inv(16) were detected by conventional cytogeneties and fluorescence in situ hybridization (FISH), respectively, the immunophenotype was detected by flow cytometry. The results showed that conventional cytogenetics and FISH analysis revealed inv(16). Induction therapy included idarubicin and cytarabine. After complete remission, patient received consolidation theray containing high-dose cytarabine (HDAC). FISH analysis revealed poor response of patient to HDAC. It is concluded that bulky lymphadenopathy in AML with inv (16) may be a negative prognostic sign. FISH for inv(16) is specific and constitutes an reliable tool to be used for diagnosis and minimal residual disease (MRD).