Department of Radiology, The Royal Marsden Hospital, London, UK.
Clin Radiol. 2013 Oct;68(10):1074-85. doi: 10.1016/j.crad.2013.05.003. Epub 2013 Jun 27.
Primary soft-tissue buttock tumours are relatively common entities, although they are infrequently reported in the literature. The buttock can be a difficult anatomical site to treat soft-tissue tumours due to the proximity of the sciatic nerve and the propensity of tumours at this site to extend into the pelvis and perineum. Therefore, the radiologist plays an important role in the multidisciplinary assessment of these lesions. Cross-sectional imaging, principally magnetic resonance imaging, is used to determine the exact location and extension of the tumour. Furthermore, certain tumours have characteristic imaging appearances that can help to establish a suitably ordered differential diagnosis. From our prospectively maintained database at The Royal Marsden Hospital, including 225 cases that were treated at the Sarcoma Unit over a 30 year period, we present examples of benign and malignant primary soft-tissue buttock tumours and describe the pertinent imaging characteristics, with emphasis on computed tomography and magnetic resonance imaging findings.
原发性臀部软组织肿瘤较为常见，但文献报道较少。由于坐骨神经位置较近，且该部位肿瘤易向骨盆和会阴延伸，臀部是软组织肿瘤治疗较为困难的解剖部位。因此，放射科医生在这些病变的多学科评估中发挥着重要作用。横断面成像主要是磁共振成像，用于确定肿瘤的确切位置和范围。此外，某些肿瘤具有特征性的影像学表现，有助于建立适当的鉴别诊断顺序。我们从皇家马斯登医院的前瞻性数据库中，包括肉瘤科在 30 年期间治疗的 225 例患者，展示了良性和恶性原发性臀部软组织肿瘤的实例，并描述了相关的影像学特征，重点介绍了 CT 和 MRI 结果。
