| 崔久法,陈海松,侯峰,徐文坚.腺泡状软组织肉瘤的MR特点[J].中国医学影像技术,2016,32(9):1432~1435 |
| 腺泡状软组织肉瘤的MR特点 |
| MR characteristics of alveolar soft part sarcoma |
| 投稿时间：2016-01-17 修订日期：2016-04-07 |
| DOI：10.13929/j.1003-3289.2016.09.029 |
| 中文关键词: 肉瘤,软组织腺泡状 诊断显像 磁共振成像 |
| 英文关键词:Sarcoma, alveolar soft part Diagnostic imaging Magnetic resonance imaging |
| 基金项目: |
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| 摘要点击次数: 1999 |
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| 中文摘要: |
| 目的 探讨腺泡状软组织肉瘤（ASPS）的MRI表现。方法 回顾性分析经病理证实的10例腺泡状软组织肉瘤的MRI表现，重点观察肿瘤血管的部位、形态、信号及肿瘤强化特点。结果 10例T2WI上肿瘤中央区见流空血管，其中7例呈放射状向中心聚集、3例呈散在细枝状。10例流空血管周围伴行高信号，其中5例呈管状、5例呈片状；10例肿瘤周围区呈稍高信号。10例肿瘤周围可见流空血管，其中7例在肿瘤四周包绕。8例肿瘤周围可见高信号血管，其中7例位于上下极。5例接受MR增强扫描，其中4例呈中等强化伴血管样强化，1例呈均匀血管样强化。结论 T2WI上中央区放射状血管流空低信号伴管状、片状（缓慢血流或血窦）高信号的表现，是诊断ASPS的特征性表现。 |
| 英文摘要: |
| Objective To explore MR characteristics of alveolar soft part sarcoma (ASPS). Methods MRI findings of 10 patients with ASPS proved by pathology were reviewed retrospectively. The features of tumor vessels' location, shape, signal intensity and tumor enhancement patterns were specially assessed. Results Flow voids sign was found on T2WI in all 10 cases in central part of tumor, which arrayed in a radiating mode converging toward the center (n=7) or scattered like branches of tree (n=3). All cases demonstrated tubular (n=5) and patchy (n=5) high signal intensity on T2WI in accompany with flow voids. Slightly high signal intensity in peripheral part of tumor was shown in all the cases. Flow voids signal around the tumors were seen in all the cases, the 7 cases of which surrounded the tumor. Eight cases had high signal intensity vessels around the tumor, the vessels of 7 cases located at superior or inferior poles. Five cases underwent enhancement scanning, moderate enhancement was seen in 4 patients and remarkable enhancement in 1 patient. Conclusion The radiating arrayed flow voids accompanied with high signal intensity of slow blood or sinus in the center region is characteristic for the diagnosis of ASPS. |
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