The purpose of our educational exhibit is to help radiologists :
Recognize common and rare presentation of bilateral renal lesions.
Seek association with extra-renal features.
Narrow the differential diagnosis to reduce time to final diagnosis.
Bilateral renal lesions are common findings.
The radiologists should be able to recognize some typical common and rare patterns.
We selected cases with bilateral renal lesions issued from large tertiary referral centers demonstrating an educational interest.
For each case we provideclinical setting,
radiological description and tips.
We propose a classification of these case as follows :
Renal Cell Carcinoma (RCC)
Transitional cell carcinoma
Angiomyolipoma (Bourneville Tuberous Sclerosis)
Adult Polycystic Kidney Disease
Findings and procedure details
BILATERAL RENAL LESIONS : TUMORAL
Male infant (6 y.o.) -Exploration of abdominal pain and parental palpation of an abdominal mass.
US shows bilateral renal masses,
slightly more echogenic than renal parenchyma.
MRI confirms bilateral renal tumors,
with the typical characteristics of nephroblastoma (hyperT2,
Final diagnosis is bilateral nephroblastomas without metastasis,
probably part of a undefined syndrome (still currently being analyzed).
Neuroblastoma (or Wilms tumor) is the most common pediatric renal mass,
typically occurring in early childhood (1-11...
Bilateral renal lesions are common findings and radiologists should know specific associations to narrow the differential diagnosis.
Pediatric Renal Masses,
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Renal Lymphoma : CT patterns with Emphasis on Helical CT,
Bruce A and al.,
MRI Features of Renal Oncocytoma and Chromophobe Renal Cell Carcinoma,
Rosenkrantz A and al.,
Differentiation of Subtypes of Renal Cell Carcinoma on Helical CT Scans,
Jeong KK and al.,
Pyelonephritis : radiologic-pathologic review,
Craig W and al.,
Urothelial Cancer of the Renal Pelvicaliceal System : Unusual Imaging Manifestations,
Prando A and al.,