例１、２均为男性建筑工人，年龄分别为２０岁和２５岁，且均在施工中臀部被钢筋刺入。例１在清创缝合拔出钢筋时有鲜红色血涌出，行臀部加压后缝合，术后臀部有一包块，误认为是肌肉间残留积血，未予处理。３个月后来我院就诊，右臀部有一６ｃｍ×１７ｃｍ×７ｃｍ大小包... Examples 1 and 2 are all male construction workers, aged 20 and 25 years respectively, and all of them were pierced with steel bars during construction. Example 1 When the debridement and suture extraction of steel bars, there was a burst of bright red blood. After the buttocks were pressurized, they were sutured. There was a mass of the buttocks on the buttock. It was mistaken for residual blood in the muscle and was not treated. 3 months later our hospital, the right hip has a 6cm × 17cm × 7cm size package ...