Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Pyonephrosis ultrasound
Introduction
Overview
Overview
Ultrasound is easily available and cost-effective imaging modality that can be used at the bedside in the emergency setting. Ultrasound features in pyonephrosis include dilated pelvicalyceal system, echogenic debris, fluid-fluid levels in the collecting system. Ultrasound has high specificity but low sensitivity for diagnosing pyonephrosis.
Ultrasound
Ultrasound
Ultrasound is an easily available, cost-effective imaging modality that can be used at the bedside in the emergency setting.
Ultrasound features in pyonephrosis include[1]:
- Dilated pelvicalyceal system
- Echogenic debris
- Fluid-fluid levels in the collecting system
- Dirty echoes of gas
Due to high specificity (100%) for diagnosing pyonephrosis by ultrasound but low sensitivity (62%), patients with sepsis and significant hydronephrosis should have sonographically guided percutaneous needle aspiration to confirm the diagnosis.[2][3]
References
References
- ↑ Tamburrini S, Lugarà M, Iannuzzi M, Cesaro E, De Simone F, Del Biondo D; et al. (2021). “Pyonephrosis Ultrasound and Computed Tomography Features: A Pictorial Review”. Diagnostics (Basel). 11 (2). doi:10.3390/diagnostics11020331. PMC 7921924 Check
|pmc=value (help). PMID 33671431 Check|pmid=value (help). - ↑ Jeffrey RB, Laing FC, Wing VW, Hoddick W (1985). “Sensitivity of sonography in pyonephrosis: a reevaluation”. AJR Am J Roentgenol. 144 (1): 71–3. doi:10.2214/ajr.144.1.71. PMID 3880629.
- ↑ Schneider K, Helmig FJ, Eife R, Belohradsky BH, Kohn MM, Devens K; et al. (1989). “Pyonephrosis in childhood–is ultrasound sufficient for diagnosis?”. Pediatr Radiol. 19 (5): 302–7. doi:10.1007/BF02467298. PMID 2666936.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Harsh Vardhan Chawla, M.B.B.S.[2]