You are here

Article Text

Article menu

Download PDFPDF

Images in paediatrics
Crossed fused ectopic left kidney
Free
  1. O Hochwald,
  2. R Shaoul
  1. Paediatric Department, Bnai Zion Medical Center, Haifa, Israel; orinoamzahav.net.il

http://dx.doi.org/10.1136/adc.2003.047647

Statistics from Altmetric.com

    Request Permissions

    If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

    A 5 year old boy was referred to our paediatric ward with fever, headache, and vomiting. Clinical examination elicited tenderness over both flanks and a renal ultrasound was performed. A mass extending over the midline compatible with the diagnosis of a crossed fused ectopic left kidney was noted (arrows, fig 1⇓). A technetium-DMSA scan revealed a normally located and sized right kidney with small horizontal left kidney connected to its lower pole (arrows, fig 2⇓). Renal SPECT showed absorption of 20% in the right and 5% in the left kidney.

    Figure 1
    Figure 1

     Renal ultrasound showed a mass extending over the midline compatible with the diagnosis of a crossed fused ectopic left kidney.

    Figure 2
    Figure 2

     On the lower pole of a normal right kidney, there is a texture adjacent to it extending beyond the midline and suspected as an ectopic left kidney.

    A crossed fused renal ectopia is an entity where one kidney crosses over to the other side and the parenchyma of the two kidneys fuse. In most cases it involves the left kidney, as in our patient. Renal function is usually normal. Other anomalies associated with this condition are the VACTER syndrome, hydronephrosis, annular pancreas, and multicystic dysplasia. Most cases are sporadic but dominant inheritance has been reported.