Anomalies of the Renal Pelvis and Ureter

Avni, Fred E.; Hall, Michelle; Collier, Frank; Schulman, Claude

doi:10.1007/978-3-642-56484-0_7

Cited by 3 publications

(2 citation statements)

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“…An anteroposterior renal pelvic diameter larger than 10 mm was interpreted as hydronephrosis. 12 A reduction in renal parenchymal thickness and possible corresponding calyceal deformation was interpreted as a renal parenchymal defect, and the defect was considered new renal damage if it was seen only in the control US. Kidney growth retardation was defined as a longitudinal renal dimension smaller than −2 SDs of the mean renal length according to the patient's height.…”

Section: Definitionsmentioning

confidence: 99%

Long-term Follow-up of Patients After Childhood Urinary Tract Infection

Hannula¹,

Perhomaa²,

Venhola³

et al. 2012

Arch Pediatr Adolesc Med

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To evaluate the long-term outcome of children with urinary tract infection (UTI). Design: Follow-up examination 6 to 17 years after childhood UTI. Setting: Secondary to tertiary referral center. Patients: From an original population-based cohort of 1185 children with a history of UTI on whom both ultrasonography (US) and voiding cystourethrography had been performed between January 1, 1993, and December 31, 2003, we excluded 24 cases with major renal dysplasia or obstruction of the urinary tract to form a study cohort of 1161 patients. We took a stratified random sample of 228 patients for follow-up, and a total of 193 (85%) participated. Of the 193 participating patients, 103 (53%) had received antibiotic prophylaxis and 42 (22%) had undergone surgery. Main Exposure: Urinary tract infection. Main Outcome Measures: Renal growth and parenchymal damage in US examination, kidney function, and blood pressure. Results: Unilateral renal parenchymal defect was found in 22 of the 150 patients (15%) studied with US at followup, and unilateral kidney growth retardation was found in 5 patients (3%). All but 1 of the renal parenchymal defects seen on US were in patients with grade III to V vesicoureteral reflux. Despite the parenchymal defects seen on US, the serum cystatin C concentration, estimated glomerular filtration rate, and blood pressure were within the normal ranges in all patients. Conclusions: The risk of long-term consequences from childhood UTI seems to be very low. Owing to the observational nature of our study, we cannot exclude the effects of the given treatment on the outcome of our patients.

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Section: Definitionsmentioning

confidence: 99%

Long-term Follow-up of Patients After Childhood Urinary Tract Infection

Hannula¹,

Perhomaa²,

Venhola³

et al. 2012

Arch Pediatr Adolesc Med

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“…Transitional cell epithelium lines this nonsecretory outpouching and it communicates with the main collecting system via a narrow channel . Most of the diverticula are small and asymptomatic; however, they can rarely present with the development of milk of calcium and lithiasis . The exact etiology of renal calyceal diverticula is unknown and most of them are believed to have a congenital origin.…”

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confidence: 99%

Differentiation of simple renal parenchymal cyst and calyceal diverticulum

Şahin

Sarıoğlu

Alaygut

et al. 2020

Pediatrics International

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Background: Calyceal diverticulum is the cystic eventration of the upper urinary tract within the renal parenchyma, which gives the first impression of a simple renal cyst and therefore can easily be misdiagnosed. We conducted a study to assess the role of static-fluid magnetic resonance (MR) urography in the differentiation of renal parenchymal cysts and calyceal diverticulum in comparison with focused renal ultrasonography (US). Methods: Focused renal US, static-fluid, and excretory MR urography studies of 45 children who were admitted to our pediatric nephrology department with a diagnosis of renal cyst were reviewed retrospectively. Excretory MR urography was accepted as gold standard for the diagnosis of calyceal diverticulum. Sensitivity and specificity of focused renal US and static fluid MR urography in the diagnosis of renal calyceal diverticulum were assessed. Interobserver agreement between three radiologists in the diagnosis of calyceal diverticulum on MRI was also evaluated. Results: The study included 29 patients (13 boys and 16 girls) aged between 6-18 years (mean 11.5 AE 4.1). Five calyceal diverticula and 24 solitary renal parenchymal cysts were diagnosed. The sensitivity and the specificity of focused renal US were 40% and 100% in the diagnosis of calyceal diverticulum. The sensitivity and the specificity of static-fluid MR urography were 100% and 91.6%, respectively. The degree of interobserver agreement was excellent for the diagnosis of diverticulum for static-fluid MR urography (j = 0.86, 95% CI: 0.71-1.00). Conclusions: Static-fluid MR urography can be successfully used in children for the differentiation of renal parenchymal cyst and calyceal diverticulum due to its high sensitivity and specificity, without exposing children to ionizing radiation or intravenous contrast agents.

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