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目的探讨臀部软组织肿瘤的影像学特点及鉴别诊断要点。方法回顾性分析经手术病理或穿刺证实的13例臀部软组织肿瘤患者的影像学资料,其中9例行X线平片检查,12例行CT检查,13例均行MRI检查,3例术后行胸部CT复查肺部情况。结果 9例X线平片检查者仅5例有阳性发现;所有CT和MRI检查均为阳性,其中良性肿瘤7例,边缘光滑、形态规则,信号均匀,增强扫描均匀强化或不均匀强化;恶性肿瘤6例,形态不规则,多呈分叶状,信号不均匀,多累及周围结构,增强扫描强化明显。结论影像学检查,尤其是MRI检查,对软组织肿瘤敏感性高,可大大提高臀部软组织肿瘤诊断及鉴别诊断的准确性。
Objective To investigate the imaging features and differential diagnosis of buttock soft tissue tumors. Methods Thirteen patients with soft tissue tumors of the buttocks proved by pathology or biopsy were retrospectively analyzed. Among them, 9 were examined by X-ray plain film, 12 by CT, 13 by MRI and 3 by postoperative Chest CT review of the lungs. Results Of the 9 cases of X-ray examination, only 5 cases had positive findings. All the CT and MRI were positive. Among them, 7 cases had benign tumors with smooth edges, regular morphology, uniform signal, enhanced or even non-uniform enhancement of scanning. Tumors in 6 cases, irregular shape, mostly lobulated, the signal is uneven, more involved surrounding structures, enhanced enhanced scanning obvious. Conclusion Imaging examination, especially MRI examination, is highly sensitive to soft tissue tumors, which can greatly improve the accuracy of differential diagnosis of hip soft tissue tumors.