Ureteral obstruction by sloughed tumor complicating cryoablation of a renal oncocytoma

Research output: Contribution to journalArticle

Abstract

Percutaneous cryoablation for renal tumors may be associated with rare complications such as injury to the ureter. A 65-year-old woman underwent percutaneous cryoablation after a transcatheter arterial embolization using lipiodol and ethanol for left renal oncocytoma. Two months after the percutaneous cryoablation, computed tomography images showed left hydronephrosis caused by high-density debris, which was assumed to be sloughed tumor with lipiodol accumulation in the left ureter. A stent was placed in the left ureter to enhance the drainage of urine and the necrotic cell debris. Three months later, the ureteral stent was removed, and she remained asymptomatic during the follow-up period of 4 months. We should consider the possibility of urinary tract obstruction by sloughed tumor when hydronephrosis occurs after percutaneous cryoablation of a renal tumor.

Original languageEnglish
Pages (from-to)1195-1198
Number of pages4
JournalRadiology Case Reports
Volume13
Issue number6
DOIs
Publication statusPublished - Dec 1 2018

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Ureteral Obstruction
Cryosurgery
Ureter
Ethiodized Oil
Hydronephrosis
Stents
Neoplasms
Kidney
Urinary Tract
Drainage
Ethanol
Tomography
Urine
Renal oncocytoma
Wounds and Injuries

Keywords

  • Cryoablation
  • Hydronephrosis
  • Renal tumor
  • Urinary fistula

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

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title = "Ureteral obstruction by sloughed tumor complicating cryoablation of a renal oncocytoma",
abstract = "Percutaneous cryoablation for renal tumors may be associated with rare complications such as injury to the ureter. A 65-year-old woman underwent percutaneous cryoablation after a transcatheter arterial embolization using lipiodol and ethanol for left renal oncocytoma. Two months after the percutaneous cryoablation, computed tomography images showed left hydronephrosis caused by high-density debris, which was assumed to be sloughed tumor with lipiodol accumulation in the left ureter. A stent was placed in the left ureter to enhance the drainage of urine and the necrotic cell debris. Three months later, the ureteral stent was removed, and she remained asymptomatic during the follow-up period of 4 months. We should consider the possibility of urinary tract obstruction by sloughed tumor when hydronephrosis occurs after percutaneous cryoablation of a renal tumor.",
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AU - Okawa, Hiro

AU - Gobara, Hideo

AU - Matsui, Yusuke

AU - Iguchi, Toshihiro

AU - Hiraki, Takao

AU - Kanazawa, Susumu

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Percutaneous cryoablation for renal tumors may be associated with rare complications such as injury to the ureter. A 65-year-old woman underwent percutaneous cryoablation after a transcatheter arterial embolization using lipiodol and ethanol for left renal oncocytoma. Two months after the percutaneous cryoablation, computed tomography images showed left hydronephrosis caused by high-density debris, which was assumed to be sloughed tumor with lipiodol accumulation in the left ureter. A stent was placed in the left ureter to enhance the drainage of urine and the necrotic cell debris. Three months later, the ureteral stent was removed, and she remained asymptomatic during the follow-up period of 4 months. We should consider the possibility of urinary tract obstruction by sloughed tumor when hydronephrosis occurs after percutaneous cryoablation of a renal tumor.

AB - Percutaneous cryoablation for renal tumors may be associated with rare complications such as injury to the ureter. A 65-year-old woman underwent percutaneous cryoablation after a transcatheter arterial embolization using lipiodol and ethanol for left renal oncocytoma. Two months after the percutaneous cryoablation, computed tomography images showed left hydronephrosis caused by high-density debris, which was assumed to be sloughed tumor with lipiodol accumulation in the left ureter. A stent was placed in the left ureter to enhance the drainage of urine and the necrotic cell debris. Three months later, the ureteral stent was removed, and she remained asymptomatic during the follow-up period of 4 months. We should consider the possibility of urinary tract obstruction by sloughed tumor when hydronephrosis occurs after percutaneous cryoablation of a renal tumor.

KW - Cryoablation

KW - Hydronephrosis

KW - Renal tumor

KW - Urinary fistula

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