Article: Recurrent urinary retention due to clots caused by a congenital renal arteriovenous malformation that forms a complex vascular network: Report of two cases

Introduction: Repeated urinary retention due to clots caused by congenital renal arteriovenous malformation is rare.

Case Presentation: A 40-year-old woman (case 1) and a 66-year-old man (case 2) experienced recurrent urinary retention due to clots. Neither patient had a history of renal trauma nor was taking any medications. Contrast-enhanced abdominal computed tomography revealed a large hematoma in the renal pelvis and ureter with no masses, stones, or vascular lesions and only dilated blood vessels in the arterial phase in case 1. Angiography of the kidney in both patients revealed an arteriovenous malformation, and embolization of the arteries feeding the arteriovenous malformation was performed. Soon after embolization, hematuria disappeared completely with no recurrence for 5 years in case 1 and 2 years in case 2.

Conclusion: Congenital renal arteriovenous malformation should be considered as a cause of recurrent clot retention, and angiographic embolization of the feeding arteries can be an effective treatment.

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Editorial Comment from Dr. Kato to Recurrent urinary retention due to clots caused by a congenital renal arteriovenous malformation that forms a complex vascular network: Report of two cases.

Kato T IJU Case Rep. 2022; 5(1):8-9.

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Recurrent urinary retention due to clots caused by a congenital renal arteriovenous malformation that forms a complex vascular network: Report of two cases.

Ishii M, Nakata W, Horibe Y, Tsujimura G, Tsujimoto Y, Nin M IJU Case Rep. 2022; 5(1):5-8.

PMID: 35005456 PMC: 8720720. DOI: 10.1002/iju5.12368.

References

1.

Ishii M, Nakata W, Horibe Y, Tsujimura G, Tsujimoto Y, Nin M . Recurrent urinary retention due to clots caused by a congenital renal arteriovenous malformation that forms a complex vascular network: Report of two cases. IJU Case Rep. 2022; 5(1):5-8. PMC: 8720720. DOI: 10.1002/iju5.12368. View

2.

Javanmard B, Khah H, Fallah-Karkan M, Khan S . Recurrent hematuria in renal angio-venous malformation, delay diagnosis and endovascular treatment, a case report. Urol Case Rep. 2017; 16:46-47. PMC: 5671406. DOI: 10.1016/j.eucr.2017.09.008. View

3.

Cura M, Elmerhi F, Suri R, Bugnone A, Dalsaso T . Vascular malformations and arteriovenous fistulas of the kidney. Acta Radiol. 2010; 51(2):144-9. DOI: 10.3109/02841850903463646. View

4.

Ali M, Aziz W, Abbas F . Renal arteriovenous malformation: an unusual cause of recurrent haematuria. BMJ Case Rep. 2013; 2013. PMC: 3736449. DOI: 10.1136/bcr-2013-010374. View

5.

Yakes W, Rossi P, Odink H . How I do it. Arteriovenous malformation management. Cardiovasc Intervent Radiol. 1996; 19(2):65-71. DOI: 10.1007/BF02563895. View

6.

Isom N, Masoomi R, Alli A, Gupta K . Congenital Renal Arteriovenous Malformation: A Rare but Treatable Cause of Hypertension. Am J Case Rep. 2019; 20:314-317. PMC: 6698062. DOI: 10.12659/AJCR.912727. View

7.

Maruno M, Kiyosue H, Tanoue S, Hongo N, Matsumoto S, Mori H . Renal Arteriovenous Shunts: Clinical Features, Imaging Appearance, and Transcatheter Embolization Based on Angioarchitecture. Radiographics. 2016; 36(2):580-95. DOI: 10.1148/rg.2016150124. View

8.

Hatzidakis A, Rossi M, Mamoulakis C, Kehagias E, Orgera G, Krokidis M . Management of renal arteriovenous malformations: A pictorial review. Insights Imaging. 2014; 5(4):523-30. PMC: 4141337. DOI: 10.1007/s13244-014-0342-4. View

9.

Dames E, Ng L, Tay K . Congenital renal arteriovenous malformation presenting with gross hematuria after a routine jog: a case report. J Med Case Rep. 2014; 8:65. PMC: 3943373. DOI: 10.1186/1752-1947-8-65. View

10.

TAKAHA M, Matsumoto A, Ochi K, Takeuchi M, Takemoto M, Sonoda T . Intrarenal arteriovenous malformation. J Urol. 1980; 124(3):315-8. DOI: 10.1016/s0022-5347(17)55424-5. View

11.

Mitchell S, Shah A, Schwengel D . Pulmonary artery pressure changes during ethanol embolization procedures to treat vascular malformations: can cardiovascular collapse be predicted?. J Vasc Interv Radiol. 2006; 17(2 Pt 1):253-62. DOI: 10.1097/01.RVI.0000196273.82991.03. View

Recurrent Urinary Retention Due to Clots Caused by a Congenital Renal Arteriovenous Malformation That Forms a Complex Vascular Network: Report of Two Cases