ArticleFrontiers in medicine2025
Ultrasonographic features of IgG4-related kidney disease: diagnostic value and correlation with clinical-pathological findings.
Article in Frontiers in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: To systematically characterize the ultrasonographic features of biopsy-proven IgG4-related kidney disease (IgG4-RKD) and to evaluate their correlation with key clinicopathological parameters. Methods: In this retrospective study, the ultrasonographic, clinical, laboratory, and pathological data of 15 patients with biopsy-confirmed IgG4-RKD were analyzed. Key sonographic features, including renal size, parenchymal echotexture, focal lesions, and resistive index, were evaluated and correlated with clinicopathological findings. Results: The cohort consisted of predominantly older males (86.7%) with frequent multi-organ involvement (60.0%). The most common ultrasonographic pattern included bilateral involvement (93.3%), increased or heterogeneous echogenicity (73.3%/60.0%), multiple hypoechoic areas (46.7%), and enlargement of at least one kidney (>12 cm) in 40.0% of patients. Increased renal length showed a significant positive correlation with serum IgG4 levels ( Conclusion: Ultrasonography in IgG4-RKD reveals a characteristic pattern of findings that not only serve a descriptive role but also quantitatively correlate with serological disease activity and renal dysfunction. Therefore, ultrasound is a valuable, non-invasive tool for initial assessment, guiding diagnosis, and monitoring therapeutic response in the clinical management of IgG4-RKD.
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