机构地区:[1]北京大学第一医院影像科,北京100034 [2]北京大学第一医院儿科,北京100034
出 处:《中国小儿血液与肿瘤杂志》2023年第3期153-158,共6页Journal of China Pediatric Blood and Cancer
摘 要:目的探讨并总结儿童神经母细胞瘤并发眼阵挛肌阵挛综合征(NB-OMS)的肿物影像学特征,以指导临床早期诊断,避免误诊。方法采用病例对照研究,以北京大学第一医院2007年1月—2022年12月诊断的NB-OMS患儿为病例组,按照1∶1的比例,收集同时期、同一家医院诊治、同年龄(月龄相差<6个月)、同性别的单纯神经母细胞瘤(NB)患儿为对照组,影像学资料由两位影像科医师重新读片分析。结果(1)NB-OMS组患儿34例,男21例,女13例,发病中位年龄为18(6-48)个月;对照组发病中位年龄为20(8-50)个月。(2)所有NB-OMS患儿都因增强CT和/或MRI检查发现肿物而得到临床诊断,手术切除肿物病理证实诊断。(3)NB-OMS组患儿肿物位于肾上腺者仅占17.6%,其余均位于脊柱旁,其中位于胸椎旁、腰椎旁和骶椎旁者分别占32.4%、38.2%和11.8%;单纯NB组肿物位于肾上腺者占55.9%,其余分别位于胸椎旁(14.7%)、腰椎旁(14.7%)、骶椎旁(2.9%)和颈椎旁(11.8%)(P<0.01)。(4)与单纯NB组肿物影像特征相比,NB-OMS组肿物最大直径≥5cm者较少,边界清楚和实性者较多,钙化较少,包绕周围重要血管者较少,无远处转移。(5)NB-OMS组尿香草杏仁酸阳性率仅为11.8%,尿高香草酸阳性率为2.9%,血清特异性烯醇化酶≥100ng/mL者仅占2.9%,明显低于单纯NB组(分别为为76.5%、82.6%和64.8%)(P<0.01)。(6)长期随访,NB-OMS组有1例死亡,肿物位于肾上腺;单纯NB组有11例死亡,其中8例原发肿瘤位于肾上腺,死亡原因均为肿瘤进展或复发。结论NB-OMS患儿肿物多发生在脊柱旁交感神经链,而不是肾上腺,肿瘤标记物在NB-OMS中阳性率非常低,胸腹盆增强CT/MRI检查对NB-OMS的早期诊断具有重要意义。肿瘤发生在肾上腺者可能预后不佳。Objective To investigate and summarize the imaging features of pediatric neuroblastoma complicated with ocular myoclonus syndrome(NB-OMS),to help early clinical diagnosis.Methods A case-control study was conducted.Patients with NB-OMS diagnosed in Peking University First Hospital from January 2007 to December 2022 were selected as the case group.Patients with the same age(less than 6 months)and of the same gender with neuroblastoma(NB)at the same time and in the same hospital were selected as the control group.The imaging data were reviewed separately by two radiologists.Results①There were thirty-four patients in NB-OMS group,including 21 males and 13 females,with a median age of onset of 18(6-48)months.The number of patients in the NB group and the ratio of males to females were the same as those in the NB-OMS group,and the median age of onset was 20(8-50)months.②All NB-OMS patients were diagnosed by a masse found by contrast-enhanced CT and/or MRI,followed by surgical resection of the tumor and pathological confirmation of the diagnosis.③The results of imaging examination showed that only 17.6% of the tumors in the NB-OMS group were located in the adrenal gland,and the rest(83.4%)were located in the paraspinal area,including 32.4%in the thoracic paraspinal area,38.2% in the lumbar paraspinal area,and 11.8% in the sacral paraspinal area;In NB group,55.9% of patients had tumors located in adrenal gland,and the rest were located in thoracic paravertebral area(14.7%),lumbar paravertebral area(14.7%),sacral paravertebral area(2.9%)and cervical paravertebral area(11.8%)(P<0.01).④In comparison with NB group,the masses of NB-OMS cases were mostly smaller in size,more clearly boundary and solid,less calcified and,and less defined in L2,none in M of INRG staging system.⑤The positive rate of urinary VMA in NB-OMS group was only 11.8%,the VHA was 2.9%,and the serum NSE≥100ng/mL was only 2.9%.It was significantly lower than that in the NB group(76.5%,82.6% and 64.8%,respectively)(P<0.01).⑥In the long-term foll
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