J Korean Soc Radiol.  2019 Jul;80(4):773-776. 10.3348/jksr.2019.80.4.773.

Unilateral Ureteric Entrapment within the Sacroiliac Joint Causing Unilateral Hydroureteronephrosis

• Lee JH
• Cho BS

• KMID: 2457456
• DOI: http://doi.org/10.3348/jksr.2019.80.4.773

Abstract

Ureteric entrapment within the sacroiliac joint (SIJ) is very rare. However, we experienced a case of a 77-year-old woman who presented with right hydronephrosis during a routine health check. Computed tomography and retrograde pyelography showed entrapment of the right ureter at the level of the SIJ, with a right proximal hydroureter, which was confirmed during surgery. Herein, we described this case and present a review of the literature on similar cases.

MeSH Terms

Aged
Female
Humans
Hydronephrosis
Sacroiliac Joint*
Tomography, X-Ray Computed
Ureter*
Urography

Figure

• 

  Fig. 1 A 77-year-old patient with unilateral hydronephrosis due to ureteric entrapment within the SIJ. A. Intravenous pyelography shows that the proximal ureter and renal pelvocalyx are dilated. B, C. Retrograde pyelogram shows dilatation of the right proximal ureter above the SIJ level and kinking and entrapment of the right mid-ureter at the SIJ. D, E. Coronal (D) and oblique sagittal (E) images show that the right mid-ureter is seen to be entrapped in the right SIJ (arrow, D), and there is abrupt luminal narrowing of the ureter at the portion immediately distal to the SIJ (arrow, E). SIJ = sacroiliac joint

Reference

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