Creation of a neoinfundibulum and serial balloon dilations for the treatment of the excluded calyx: Two cases describing a novel technique

Prajna Chopra, MD; Curtis H. Cleveland, MD; Mark Johnson, MD; Hans Michell, MD; Peter Holoch, MD; Brian Irwin, MD; Geoffrey M. Scriver, MD; Christopher S. Morris, MD

Radiology Case Reports (Aug 2020)

Creation of a neoinfundibulum and serial balloon dilations for the treatment of the excluded calyx: Two cases describing a novel technique

Prajna Chopra, MD,
Curtis H. Cleveland, MD,
Mark Johnson, MD,
Hans Michell, MD,
Peter Holoch, MD,
Brian Irwin, MD,
Geoffrey M. Scriver, MD,
Christopher S. Morris, MD

Affiliations

Prajna Chopra, MD: University of Vermont College of Medicine, Burlington, VT, USA; Interventional Radiology, Department of Radiology, University of Vermont Medical Center, 111 Colchester Ave., Burlington, VT 05401, USA; Corresponding author.
Curtis H. Cleveland, MD: University of Vermont College of Medicine, Burlington, VT, USA
Mark Johnson, MD: University of Vermont College of Medicine, Burlington, VT, USA
Hans Michell, MD: University of Vermont College of Medicine, Burlington, VT, USA; Interventional Radiology, Department of Radiology, University of Vermont Medical Center, 111 Colchester Ave., Burlington, VT 05401, USA
Peter Holoch, MD: University of Vermont College of Medicine, Burlington, VT, USA
Brian Irwin, MD: University of Vermont College of Medicine, Burlington, VT, USA
Geoffrey M. Scriver, MD: University of Vermont College of Medicine, Burlington, VT, USA; Interventional Radiology, Department of Radiology, University of Vermont Medical Center, 111 Colchester Ave., Burlington, VT 05401, USA
Christopher S. Morris, MD: University of Vermont College of Medicine, Burlington, VT, USA; Interventional Radiology, Department of Radiology, University of Vermont Medical Center, 111 Colchester Ave., Burlington, VT 05401, USA

Journal volume & issue: Vol. 15, no. 8
pp. 1121 – 1127

Abstract

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An excluded calyx is a rare, acquired urologic condition where there is discontinuity between a portion of the renal collecting system with the remainder of the collecting system. Re-establishment of reliable long-term communication between the excluded calyx and the remaining collecting system is crucial for preservation of renal function and possible relief of symptoms. In this manuscript, we discuss two such cases where a previously undescribed novel procedure is used for treatment of this uncommon condition, where percutaneous antegrade transcatheter techniques were used to establish long-term urinary drainage. The first case discusses an excluded calyx in a 17-year-old male who suffered left renal injury after a high speed motor vehicle accident, where the kidney was divided by the injury and subsequently required creation of a neoinfundibulum in order to maintain continuity of the collecting system. The second case involves a 39-year-old female who underwent resection of a renal cell carcinoma, later developing an excluded calyx where radiofrequency wire recanalization was performed and the neoinfundibular track underwent serial retrograde balloon dilation, resulting in a continuous collecting system. Both patients have done well for more than 2 years after neoinfundibulum creation, showing that this novel technique should be considered a viable and safe procedure in the treatment of this rare condition.

Published in Radiology Case Reports

ISSN: 1930-0433 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Medicine (General): Medical physics. Medical radiology. Nuclear medicine
Website: https://www.sciencedirect.com/journal/radiology-case-reports

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