腺泡状软组织肉瘤的CT及MRI影像学表现
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摘要
目的 :探讨腺泡状软组织肉瘤(alveolar soft part sarcoma,ASPS)的CT及MRI影像学特征,以提高ASPS的诊断水平及正确率。方法:回顾性分析经手术病理证实的15例ASPS患者CT、MRI影像资料,对病灶部位、大小、形态、平扫及增强扫描等进行综合分析。15例患者中,9例行MRI平扫及增强扫描,6例行CT平扫及增强扫描,其中2例行CT血管造影(CT angiography,CTA)。结果:肿瘤多位于下肢软组织内,多呈类圆形或结节状,边界较清楚;CT平扫呈等或略低密度,CTA能清晰显示瘤周有丰富的大量迂曲的血管;MRI平扫T1WI呈稍高信号,T2WI呈高信号,瘤内及瘤周见多发扭曲的血管流空信号,瘤内见线状低信号分隔;CT及MRI增强扫描肿瘤呈明显不均匀强化,瘤内见丰富血管影。结论:ASPS影像学表现具有一定特征性,对ASPS诊断及鉴别诊断具有重要价值,有助于提高ASPS诊断的正确率。
Objective To study the CT and MRI imaging characteristics of alveolar soft part sarcoma(ASPS) to improve its imaging diagnosis. Methods Totally 15 ASPS patients confirmed pathologically had their imaging data analyzed retrospectively,which involved in the sarcoma site, size, morphology as well as the characteristics of plain and contrast-enhanced images. Of the patients, there were 9 ones underwent MRI plain and contrast-enhanced scans, 6 ones went through CT plain and contrastenhanced scans, and 2 ones were examined with CT angiography(CTA). Results The sarcomas were mostly in the soft tissues of the lower extremities, which had circular or nodular shapes as well as clear boundaries; plain CT scan showed iso-or slightly hypo-dense masses, and CTA displayed clearly there were abundant vessels around the sarcomas; plain MRI scan found slightly hypertense on T1WI, hypertense on T2WI, multiple distorted flowing void signals in and around the sarcomas as well as linear internal separation signs; contrast-enhanced CT and MRI verified significantly uneven enhancement and abundant vessels. Conclusion CT and MRI are characteristic for ASPS, and thus are of great value for its diagnosis and differential diagnosis. [Chinese Medical Equipment Journal,2019,40(5):54-56,65]
Objective To study the CT and MRI imaging characteristics of alveolar soft part sarcoma(ASPS) to improve its imaging diagnosis. Methods Totally 15 ASPS patients confirmed pathologically had their imaging data analyzed retrospectively,which involved in the sarcoma site, size, morphology as well as the characteristics of plain and contrast-enhanced images. Of the patients, there were 9 ones underwent MRI plain and contrast-enhanced scans, 6 ones went through CT plain and contrastenhanced scans, and 2 ones were examined with CT angiography(CTA). Results The sarcomas were mostly in the soft tissues of the lower extremities, which had circular or nodular shapes as well as clear boundaries; plain CT scan showed iso-or slightly hypo-dense masses, and CTA displayed clearly there were abundant vessels around the sarcomas; plain MRI scan found slightly hypertense on T1WI, hypertense on T2WI, multiple distorted flowing void signals in and around the sarcomas as well as linear internal separation signs; contrast-enhanced CT and MRI verified significantly uneven enhancement and abundant vessels. Conclusion CT and MRI are characteristic for ASPS, and thus are of great value for its diagnosis and differential diagnosis. [Chinese Medical Equipment Journal,2019,40(5):54-56,65]
引文
[1]金腾,彭莉,李小明,等.腺泡状软组织肉瘤的影像学表现[J].临床放射学杂志,2015,34(4):614-618.
[2]FOLPE A L,DEYRUP A T.Alveolar soft part sarcoma:a review and update[J].J Clin Pathol,2006,59:1 127-1 132.
[3]朱思国,王飞,余波.腺泡状软组织肉瘤的针吸细胞学诊断[J].中国现代医生,2015,53(9):63-66.
[4]胡培安,周正荣,王坚,等.腺泡状软组织肉瘤的影像学特征及临床病理表现[J].中国癌症杂志,2009,19(1):12-16.
[5]陈明祥,肖芹.腺泡状软组织肉瘤病理及影像学表现[J].中国中西医结合影像学杂志,2015,13(6):709-710.
[6]AHN S H,LEE J Y,WANG K C,et al.Primary alveolar soft part sarcoma arising from the cerebellopontine angle[J].Childs Nerv Syst,2014,30:345-350.
[7]刘霞,涂频,印洪林.腺泡状软组织肉瘤16例临床病理分析[J].临床与实验病理学杂志,2015,31(1):44-47.
[8]景诗学.腺泡状软组织肉瘤的病理诊断[J].现代医药卫生杂志,2016,32(2):259-261.
[9]张灵艳,李绍林,魏清柱,等.四肢腺泡状软组织肉瘤影像学表现与病理组织学研究[J].临床放射学杂志,2014,33(9):1 404-1 407.
[10]赵晓娟,伍尧泮,余深平,等.腺泡状软组织肉瘤的临床及影像学表现[J].中山大学学报(医学科学版),2013,34(5):744-749.
[11]SUH J S,CHO J,LEE S H,et al.Alveolar soft part sarcoma:MR and angiographic findings[J].Skeletal Radiol,2000,29:680-689.
[12]周建功,马小龙,汪建华,等.腺泡状软组织肉瘤的影像学特征与病理对照[J].中华放射学杂志,2013,47(2):162-165.
[2]FOLPE A L,DEYRUP A T.Alveolar soft part sarcoma:a review and update[J].J Clin Pathol,2006,59:1 127-1 132.
[3]朱思国,王飞,余波.腺泡状软组织肉瘤的针吸细胞学诊断[J].中国现代医生,2015,53(9):63-66.
[4]胡培安,周正荣,王坚,等.腺泡状软组织肉瘤的影像学特征及临床病理表现[J].中国癌症杂志,2009,19(1):12-16.
[5]陈明祥,肖芹.腺泡状软组织肉瘤病理及影像学表现[J].中国中西医结合影像学杂志,2015,13(6):709-710.
[6]AHN S H,LEE J Y,WANG K C,et al.Primary alveolar soft part sarcoma arising from the cerebellopontine angle[J].Childs Nerv Syst,2014,30:345-350.
[7]刘霞,涂频,印洪林.腺泡状软组织肉瘤16例临床病理分析[J].临床与实验病理学杂志,2015,31(1):44-47.
[8]景诗学.腺泡状软组织肉瘤的病理诊断[J].现代医药卫生杂志,2016,32(2):259-261.
[9]张灵艳,李绍林,魏清柱,等.四肢腺泡状软组织肉瘤影像学表现与病理组织学研究[J].临床放射学杂志,2014,33(9):1 404-1 407.
[10]赵晓娟,伍尧泮,余深平,等.腺泡状软组织肉瘤的临床及影像学表现[J].中山大学学报(医学科学版),2013,34(5):744-749.
[11]SUH J S,CHO J,LEE S H,et al.Alveolar soft part sarcoma:MR and angiographic findings[J].Skeletal Radiol,2000,29:680-689.
[12]周建功,马小龙,汪建华,等.腺泡状软组织肉瘤的影像学特征与病理对照[J].中华放射学杂志,2013,47(2):162-165.