Ultrasonographic Evaluation of Renal Infections

Vourganti, Srinivas; Agarwal, Piyush K.; Bodner, Donald R.; Dogra, Vikram S.

doi:10.1016/j.cult.2005.09.002

Cited by 9 publications

(12 citation statements)

References 29 publications

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“…9 Typical sonographic features of malakoplakia include hyperechoic renal parenchyma from plaque confluence. 10 Alternatively, hypoechoic lesions associated with parenchymal distortion may also be seen. 10 Fat-containing tumors that arise in the sinus typically produce a mass effect on the renal collecting system and are not associated with renal calculi, inflammation, or parenchymal atrophy.…”

Section: Discussionmentioning

confidence: 99%

“…10 Alternatively, hypoechoic lesions associated with parenchymal distortion may also be seen. 10 Fat-containing tumors that arise in the sinus typically produce a mass effect on the renal collecting system and are not associated with renal calculi, inflammation, or parenchymal atrophy. 1,7 In addition, fatty tumors typically arise within the renal parenchyma or extrarenally rather than in the renal sinus.…”

Section: Discussionmentioning

confidence: 99%

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Replacement Lipomatosis of the Kidney

Ginat

Bhatt

Dogra

2008

Journal of Ultrasound in Medicine

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eplacement renal sinus lipomatosis (RRSL) is an uncommon disorder characterized by renal sinus fat proliferation resulting from renal parenchymal atrophy, inflammation, or calculous disease. We present the sonographic features of RRSL secondary to nephrolithiasis in a 75-year-old man. The patient was successfully treated with lithotripsy. Several entities can resemble the appearance of RRSL, including malakoplakia, fat-containing tumors, and xanthogranulomatous pyelonephritis (XGP). Sonography and a high index of suspicion are helpful in making a diagnosis of RRSL.Received April 20, 2008, Case ReportThe patient was a 75-year-old man with a history of radical cystectomy for bladder carcinoma with a urostomy. He had intermittent urolithiasis, in which calculi were passed through his urostomy. The patient underwent sonography to assess for renal stones. Sonography revealed an enlarged left kidney marked by a proliferation of renal sinus fat visualized as homogeneously increased echogenicity and virtually replacing the entire renal parenchyma. Overall, the left kidney measured 13.1 cm. However, a small atrophic renal cortex was identified in the periphery. Moderate focal hydronephrosis was apparent distally, indicating a mass effect of sinus fat on the calyceal system. A large calculus was situated in the pelviureteral junction (Figure 1). Renal arterial flow was preserved. Sonographic findings of the right kidney were unremarkable except for a diffusely echogenic sinus, indicative of a fatty component compatible with age-related renal sinus lipomatosis (Figure 2).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Replacement Lipomatosis of the Kidney

Ginat

Bhatt

Dogra

2008

Journal of Ultrasound in Medicine

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“…The usage of color Doppler could help to identify pyelonephritis cases by making regions of low or absent perfusion more evident. [31][32][33][34] These less perfused areas maybe the result of the presence of vasculitis or constriction of the peripheral arterioles caused by the underlying bacterial infection. Ultrasound is also capable of detecting complications associated with urinary tract infections such as renal and perinephric abscesses, renal stones and xanthogranulomatous pyelonephritis.…”

Section: Discussionmentioning

confidence: 99%

Clinical Significance of Intraluminal Bladder Echoes on Sonography and Its Correlation with Urinary Tract Infection

Holla¹,

Junise²,

Sojan³

et al. 2017

Ann. Int. Med. Den. Res.

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Background: Clinical significance of intraluminal bladder echoes on sonography and its correlation with urinary tract infection. Ultrasonography can provide information relative to the capacity of the bladder, change in bladder outline, changes in the thickness and structure of the wall, identification of luminal structures and mural masses, and identification of extrinsic lesions which may displace the bladder or distort the wall. Our primary objectives are: To determine the clinical significance of intraluminal bladder echoes; and To determine the association between intraluminal bladder echoes and UTI. Methods: The present study was conducted on patients who were referred to the Radiology department at ACME, Pariyaram during the period of October 1 2014 to March 31 2016. These patients were referred for abdominal or KUB ultrasound and also had their urinalysis done. Results: 560 subjects (males and females) who were found to have urinary bladder internal echoes were included in the study. Pretest probability: 48.2%. Pretest odds: 0.92. Posttest odds: 1.28. Posttest probability: 0.56 or 56%. Posttest odds: 0.278. Posttest probability: 0.21 or 21%. Conclusions: In this study, this particular sonological finding showed a low specificity as well as intermediate sensitivity for making the diagnosis of UTIs.

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“…Then, the patients with renal perfusion defects on DMSA scans or CECT were included. Finally, 41 APN lesions in 28 children ( (1)(2)(3)(4)(5)(6)(7). The MVUS examination (called MV-Flow TM ) was performed with these transducers.…”

Section: Subjectsmentioning

confidence: 99%

“…Therefore, im-aging studies are required [1,2]. For diagnosing APN in paediatric patients, ultrasonography (US), magnetic resonance imaging (MRI), renal cortical scintigraphy with 99m Tc-dimercaptosuccinic acid (DMSA) scans and contrast-enhanced computed tomography (CECT) are available [3,4].…”

Section: Introductionmentioning

confidence: 99%

Microvascular Doppler ultrasound in children with acute pyelonephritis

Choi

Hong

et al. 2021

Med Ultrason

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Aims: To compare the diagnostic performance of microvascular Doppler ultrasonography (MVUS) to B-mode and con-ventional colour Doppler US (CDUS) for detecting acute pyelonephritis (APN) lesions in children. Material and methods: An IRB-approved retrospective study was performed. From July 2018 to January 2019, 41 APN lesions in 28 children (15 boys, 13 girls; age range, 1-196 months; mean age, 53 months) who underwent 99mTc‒dimercaptosuccinic acid renal scintig-raphy (DMSA) or contrast-enhanced computed tomography (CECT) and US including B-mode, CDUS, and MVUS were enrolled in this study. Three paediatric radiologists independently reviewed the B-mode, CDUS and MVUS images for the DMSA or CECT-proven APN lesions and evaluated the lesion visibility, lesion distinguishability and diagnostic confidence between the MVUS and CDUS images. Results: A total 41 of APN lesions were verified by DMSA (41 lesions) or CECT (3 lesions) during the same hospitalization period with renal US. Among 41 APN lesions, 52.8% was visible on B-mode, 85.4% on CDUS, and 94.3% on MVUS (p<0.001). Comparing the extent and margins of the lesions, MVUS had better results than CDUS in 41.5% of the lesions, CDUS had better results in 6.5% and they were equal in 52% (p<0.001). The diagnostic con-fidence of the APN lesions was higher for MVUS than CDUS in 36.6%, higher for CDUS than MVUS in 4.9%, and equal in the remaining 58.5% (p<0.05). The interobserver agreement was fair to moderate. Conclusions: MVUS showed improved detectability of hypoperfused areas in paediatric APN and provided higher diagnostic confidence.

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Ultrasonographic Evaluation of Renal Infections

Cited by 9 publications

References 29 publications

Replacement Lipomatosis of the Kidney

Replacement Lipomatosis of the Kidney

Clinical Significance of Intraluminal Bladder Echoes on Sonography and Its Correlation with Urinary Tract Infection

Microvascular Doppler ultrasound in children with acute pyelonephritis

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