Tc-99m renal scan demonstrating growth in a pediatric renal transplant

Renal transplant growth of a pediatric cadaveric kidney into an adult recipient has been well described in the clinical literature. Two growth patterns are recognized: obligatory growth occurs with time and is not reversible, and compensatory hypertrophic growth is reversible and is in response to a functional demand secondary to a nephron deficit. This article presents an example of a radionuclide study illustrating this phenomenon. This is a case of a 14-year-old girl who is 2 years status postcadaveric renal transplant secondary to glomerulonephritis and resultant end stage renal disease. The donor was a 2-year-old child.