Urology Case Reports (Sep 2015)

Growing Renal Mass: Lessons Learned on the Road From an Atypical Presentation to Successful Therapy

  • Eliza Lamin,
  • Dana A. Weiss,
  • Kassa Darge,
  • Fumiko Dekio,
  • Douglas A. Canning

DOI
https://doi.org/10.1016/j.eucr.2015.06.001
Journal volume & issue
Vol. 3, no. 5
pp. 157 – 160

Abstract

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A 25 4/7 week boy was born with a prenatal diagnosis of polyhydramnios and enlarged left kidney. Over the next 2 months serial ultrasounds demonstrated abnormal growth of the kidney, with 28.9% split function. At gestational age 39 4/7, he underwent a left radical nephrectomy. Pathology revealed congenital mesoblastic nephroma with mixed classic and cellular features. This case was puzzling due to prenatally diagnosed renal enlargement in a premature infant and inconclusive post-natal ultrasonographic imaging. Although the patient had paraneoplastic signs of polyhydramnios and hypertension, the mass did not have a classic appearance of CMN; possibly due to severe prematurity.

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