80 Cystic Dysplastic Kidney

CASE 80


Clinical Presentation


Initial abdominal sonogram in a male infant presenting with history of in utero oligohydramnios


image

Figure 80A


image

Figure 80B


Radiologic Findings


A highly echogenic kidney is evident on longitudinal (Fig. 80A) and transverse (Fig. 80B) ultrasound images with loss of the normal corticomedullary differentiation. Note the kidney is much more echogenic than the adjacent liver. A few small, peripheral, anechoic cysts are seen. Both kidneys have similar appearances and are small for age.


Diagnosis


Bilateral (cystic) renal dysplasia


Differential Diagnosis



  • Autosomal dominant polycystic kidney disease (normal kidneys usually seen in early childhood and rarely manifest with identifiable cysts in infancy)
  • Autosomal recessive polycystic kidney disease (large echogenic kidneys are seen without resolvable cysts)
  • Multicystic dysplastic kidney (MCDK) (unilateral disorder with multiple large cysts without identifiable normal renal parenchyma in a nonfunctioning kidney)
  • Acute tubular necrosis (causes enlarged kidneys without any cystic change)

Discussion


Background

Stay updated, free articles. Join our Telegram channel

Dec 21, 2015 | Posted by in PEDIATRIC IMAGING | Comments Off on 80 Cystic Dysplastic Kidney

Full access? Get Clinical Tree

Get Clinical Tree app for offline access