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本文总结了１８例肾周间隙内积血、２８例积脓和３７例肾癌累及肾周间隙共８３例的ＣＴ征象。ＣＴ主要表现为不同程度的肾周筋膜增厚；肾周间隙内纤维间隔线增粗；肾周间隙内积血积脓呈局限或包囊性分布；腰大肌受累等。根据肾周间隙解剖，认为肾周间隙内纤维间隔线有限制积液的扩散作用，并因腹主动脉和下腔静脉的阻挡，血或脓液等较稠的液体不进入对侧肾周间隙。
This article summarizes the 18 cases of perirenal space hemorrhage, 28 cases of empyema and 37 cases of renal cell carcinoma involving the perirenal space in 83 cases of CT signs. CT mainly manifested as varying degrees of perirenal fascia thickening; perirenal space fiber septal thickening; renal peritoneal empyema was limited or cystic distribution; psoas involved. According to the dissection of the perirenal space, it is thought that the interstitial fibrosis in the perirenal space has the effect of restricting the diffusion of effusion and is not blocked by the abdominal aorta and inferior vena cava, and thicker liquids such as blood or pus do not enter the contralateral perirenal space .