| 韧带样纤维瘤的CT和MRI诊断 |
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| 引用本文： | 石健,毛咪咪,冯峰.韧带样纤维瘤的CT和MRI诊断[J].CT理论与应用研究,2020,29(6):733-741. |
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| 作者姓名： | 石健 毛咪咪 冯峰 |
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| 作者单位： | 南通市肿瘤医院影像科, 江苏 南通 226361 |
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| 摘 要： | 目的:探讨韧带样纤维瘤（DF）的CT、MRI表现及其诊断价值。方法:回顾性分析经病理证实的16例DF患者的临床及影像学资料，16例中7例行CT平扫与增强，7例行MRI平扫与增强，2例同时行CT、MRI检查。结果:16例DF均为单发，包括腹外型7例，腹壁型5例，腹内型4例。边界不清14例，边界清晰2例。呈浸润性生长13例，膨胀性生长3例。病灶与肌肉长轴平行9例。CT表现:9例平扫呈稍低密度，未见出血、坏死及钙化，增强扫描飘带样强化7例，6例延迟扫描均呈渐进性持续强化。MRI表现9例均见T2WI抑脂条带状低信号，未见出血、坏死，增强扫描均呈明显不均匀强化、延迟呈渐进性持续强化。“蟹足样”浸润周围组织5例；“筋膜尾征”4例。结论:DF的CT和MRI表现具有一定的特征，综合分析这些特点对其诊断及鉴别诊断具有重要价值。CT和MRI可清晰评估DF边缘和范围，有助于术前制定手术计划。
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| 关 键 词： | 韧带样纤维瘤 体层摄影术 X线计算机 磁共振成像 |
| 收稿时间： | 2020-05-24 |
CT and MRI Diagnosis of Desmoid Type Fibromatoses |
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| Institution: | Department of Radiology, Nantong Tumor Hospital Affiliated to Nantong University, Nantong 226361, China |
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| Abstract: | Objective:To investigate the CT and MRI findings of the desmoid fibromatoses and evaluating it's diagnosis value. Methods:Clinical features and image characteristics of 16 patients with DF proved pathologically were analyzed retrospectively. Seven of the 16 cases underwent CT plain scan and enhancements and 7 cases underwent MRI plain scan and enhancements, of which 2 cases underwent both of them. Results:16 cases of DF were single, extra-abdominal type was seen in 7, abdominal wall type in 5 and intra-abdominal type in 4 tumors. Unclear border was seen in 14 cases and clear border in 2 cases. There were 13 cases with invasive growth and 3 cases with expansive growth. The lesion was parallel to the long axis of the muscle in 9 cases. CT manifestations:9 cases showed slightly lower density on plain scan, and no bleeding, necrosis and calcification were seen in lesions. The intratumoral ribbon-like enhancement was seen in 7 cases, and the progressive and continuous enhancement was seen in 6 cases with delayed scan. MRI manifestations:9 cases showed low signal intensity bands on lipid-suppressing T2 WI, and no bleeding or necrosis were seen. All cases showed obvious uneven enhancement and continuous enhancement with delayed scan. "Crab foot-like" infiltrated the surrounding tissue was seen in 5 cases, "fascial tail sign" in 4 cases. Conclusion:DF has certain characteristics on CT and MRI, and comprehensive analysis of them is of great value to its diagnosis and differential diagnosis. CT and MRI can clearly assess the margin and extent of DF, and help to make a plan before surgery. |
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