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例1,女,7岁。1986年8月23日住院。于5个月前发现右臀部肿块,右下肢跛行。无臀部肌注射史。检查:右臀部隆起,触及7×8cm扁平状肿块,质硬,边界不清,深部固定。骨盆X线片上见髂骨受压变形,骨骼无破坏。术中见肿瘤侵及大部臀大肌和部分臀中肌。与周围臀肌无明显界限。髂骨筋膜、阔筋膜和臀肌肌腱均呈瘢痕样感。肿瘤深入坐骨孔,但与坐骨神经尚能分开。将肿瘤全部切除。术后有轻度跛行。随访2年7个月,肿瘤无复发。
Example 1, female, 7 years old. Hospitalized on August 23, 1986. The right buttock mass was found 5 months ago and the right lower limb was limp. No history of hip muscle injection. Examination: The right buttock uplifted and touched a 7×8 cm flat mass. The mass was hard, the border was unclear, and the deep part was fixed. On the pelvis X-ray film, the sacrum was deformed and the bones were not damaged. During the operation, the tumor invaded most of the gluteus maximus and part of the gluteus medius muscle. There is no clear line with the surrounding gluteal muscles. The sacroiliac fascia, fascia lata, and gluteal muscle tendons all showed scarring. The tumor penetrates deeply into the sciatic foramen, but it is still separated from the sciatic nerve. All tumors were resected. Mild lameness after surgery. After 2 years and 7 months of follow-up, the tumor had no recurrence.