·腹部疾病·
肝血管平滑肌脂肪瘤影像学诊断要点
作者:张 琪1 朱 斌1 毛 羽2
所属单位:1.南京大学医学院附属鼓楼医院影像科 (江苏 南京 210000) 2.南京儿童医院超声科 (江苏 南京 210000)
PDF摘要
目的 探讨肝血管平滑肌脂肪瘤(HAML)的临床及CT、MRI诊断特点,进一步提高对该病的术前诊断率。方法 回顾性 分析7例经手术病理确诊的HAML患者的影像学表现及临床、病理特点。4名病人接受了CT扫描,2名病人接受了MRI扫 描,1位病人同时接受了CT和MRI扫描。其中5名病人接受了CT增强扫描,1名病人进行了MRI增强扫描。通过对这些 影像图像回顾性分析,总结出一些特点,例如,病灶的位置,大小,有没有早期强化的静脉,病灶的密度或信号高 低,强化方式等。结果 回顾性分析的这7名病人中,有5名女性,2名男性。肝血管平滑肌脂肪瘤通常是一种边界清 晰的孤立性肿块,有5例为单发,1例为两处病灶,另一例为3处病灶,一共10个病灶。病灶大小不一,平均直径约 4.3cm。7个位于肝右叶,1个位于尾状叶,两个位于肝左叶。4个病灶内可见脂肪密度或信号影,1 个病灶可见钙化 征象。没有一名病人有肝硬化表现和包膜。结论 当肝脏病灶出现早期强化静脉、周围强化边缘、无包膜,并且AFP 正常且无肝硬化时,应考虑肝血管平滑肌脂肪瘤的可能。
Objective to evaluate the hepatic angiomyolipomas (HAML) of clinical and CT, MRI diagnostic characteristic, further improve the preoperative diagnostic rate of the disease. Methods a retrospective analysis of 7 cases confirmed by surgery pathology HAML imaging findings and clinical and pathological features. 4 patients underwent CT scanning, 2 patients underwent MRI scanning, 1 patient underwent CT and MRI scanning at the same time. Five patients underwent CT enhanced scan, 1 patient MRI enhancement scanning. Images based on these images were retrospectively analyzed, and summarizes some characteristics, for example, the location of the lesions, size, is there any early intensive vein, the density of the lesions or signal of strengthening way, etc. Results the 7 patients were retrospectively analyzed, there are five women, two men. Hepatic angiomyolipomas is usually a clear boundary of isolated mass, 5 cases of single, two lesions, 1 case for another 3 lesions, a total of 10 lesions. Lesion size, an average of 4.3 cm in diam. 7 in the right hepatic lobe, one is located in the caudate lobe, two is located in the left hepatic lobe. Four fat density or signal lesions in visible, 1 focal signs of calcification. None of the patients with cirrhosis and envelope. Conclusion When the liver lesions appeared early strengthening around vein, strengthening edge, no envelope, and AFP normal and no cirrhosis, hepatic angiomyolipomas should be considered.
【关键词】肝血管平滑肌脂肪瘤;影像学
【中图分类号】R735.7
【文献标识码】A
【DOI】10.3969/j.issn.1009-3257.2015.05.012
前言
肝血管平滑肌脂肪瘤是一种罕见的良性肿瘤,较 常见于女性、无肝硬化患者,通常为单发。它是由三 种不同比例的成分组成:平滑肌细胞、厚壁血管和成 熟脂肪组织[1]。因而,肝血管平滑肌脂肪瘤的影像学 表现因为它的不同成分组成而高度多变,术前通过影 像学图像对其进行准确的诊断十分困难。大部分的血 管平滑肌脂肪瘤易被误诊为肝癌或肝血管瘤,七个病例中,只有两例术前诊断正确。因而本次研究的目的 是回顾性地总结肝血管平滑肌脂肪瘤的影像学特点, 提高术前影像诊断的准确率。
罕少疾病杂志
第22卷, 第 5 期
2019年11月
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