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Updated: Jul 12, 2025

Unilateral Ureteral Obstruction Model for Investigating Kidney Interstitial Fibrosis
Published on: April 25, 2025
Ureteral obstruction may activate kidney latent tuberculosis. A qualitative study
André Avarese Figueiredo1,2, Augusto de Azevedo Barreto1, Humberto Elias Lopes1,2
1NIPU - Núcleo Interdisciplnar de Pesquisa em Urologia, Federal University of Juiz de Fora, Minas Gerais, Brazil.
Ureteral obstruction from kidney stones may activate latent tuberculosis in the kidney. This study suggests a link between prior ureteral stones and the subsequent development of renal tuberculosis.
Area of Science:
- Urology
- Nephrology
- Infectious Diseases
Background:
- Urogenital Tuberculosis (UTB) is a significant global health concern.
- The pathogenesis of renal tuberculosis, particularly the role of pre-existing conditions, requires further elucidation.
Purpose of the Study:
- To investigate the hypothesis that ureteral obstruction can activate latent renal tuberculosis.
- To explore the relationship between ureteral stones and the development of UTB.
Main Methods:
- A qualitative study involving semistructured interviews with eight UTB patients.
- Analysis of clinical and radiological data to characterize disease progression.
- Identification of prior ureteral obstruction in patients with renal tuberculosis.
Main Results:
- Three out of eight UTB patients presented with a history of ureteral obstruction prior to renal tuberculosis diagnosis.
- Case examples illustrate the temporal association between ureteral stones, obstruction, and subsequent kidney tuberculosis.
- Observed findings include ureteral lithiasis, ureteral stones leading to stenosis, and nonfunctioning kidneys.
Conclusions:
- Kidney tuberculosis may develop in kidneys previously affected by ureteral obstruction.
- Ureteral obstruction may create favorable local conditions for the activation of latent renal tuberculosis foci.
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