Naganuma H, Ishida H, Konno K, Sato M, Ishida J, Komatsuda T, Sato A, Watanabe S
First Department of Internal Medicine, Akita University School of Medicine, Hondo, Akita City, Japan.
Abdom Imaging. 2001 Nov-Dec;26(6):661-3. doi: 10.1007/s00261-001-0018-7.
Renal arteriovenous malformation (RAVM) is a relatively rare congenital disease. Although sonography (US) currently is the first diagnostic tool for examining the kidney, its US and color Doppler findings have seldom been reported. We reviewed the clinical manifestations and US results of five cases of RAVM to clarify the role and limitations of US in the diagnosis.
The lesions were solitary in all cases, and the affected side was the right in four cases and the left in one case. In four cases, the patients complained of hematuria, but the remaining case had no symptoms. US did not detect the lesion, but in all cases color Doppler US showed a focal vascular lesion with posterior color spots. US reexamination with knowledge of the Doppler results did not show any focal lesion.
US was not diagnostic for RAVM, and color Doppler US should be performed immediately in patients with hematuria.
肾动静脉畸形（RAVM）是一种相对罕见的先天性疾病。尽管超声检查（US）目前是检查肾脏的首要诊断工具，但其超声及彩色多普勒表现鲜有报道。我们回顾了5例RAVM的临床表现及超声检查结果，以明确超声在诊断中的作用及局限性。
所有病例病变均为单发，4例病变位于右侧，1例位于左侧。4例患者主诉血尿，其余1例无症状。超声未检测到病变，但所有病例彩色多普勒超声均显示局灶性血管病变伴后方彩色斑点。在已知多普勒检查结果的情况下进行超声复查未显示任何局灶性病变。
超声对RAVM无诊断价值，对于血尿患者应立即进行彩色多普勒超声检查。
