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Cardiology352 papers

Disorder of renal parenchyma

Last edited: 4/16/2026

Overview

Diffuse nephroblastomatosis involves abnormal proliferation of nephrogenic cells within the renal parenchyma, often seen in infancy. It can mimic bilateral Wilms' tumor but lacks the malignant characteristics of true neoplasia 1.

Diagnosis

  • Clinical presentation includes bilateral renal masses in infants 1.
  • Imaging studies (ultrasound, CT, MRI) essential for assessing extent and characteristics of the lesions 1.
  • Histopathologic examination differentiates nephroblastomatosis from Wilms' tumor by identifying benign cellular proliferation without atypia or invasion 1.
  • Management

  • Observation may be appropriate for stable, asymptomatic cases 1.
  • No specific pharmacological treatment mentioned for nephroblastomatosis in the abstract 1.
  • Close monitoring for progression or complications is crucial 1.
  • Special Populations

  • Pediatrics: Condition predominantly affects infants, requiring careful differentiation from Wilms' tumor 1.
  • Key Recommendations

  • Perform imaging studies (ultrasound, CT, MRI) to assess bilateral renal masses in infants suspected of nephroblastomatosis (Evidence: Moderate 1).
  • Histopathologic examination is critical for confirming the diagnosis and differentiating from Wilms' tumor (Evidence: Moderate 1).
  • Monitor asymptomatic cases closely without immediate intervention, reserving treatment for complications or progression (Evidence: Expert opinion 1).
  • References

    1 Telander RL, Gilchrist GS, Burgert EO, Kelalis PP, Goellner JR. Bilateral massive nephroblastomatosis in infancy. Journal of pediatric surgery 1978. link80012-8)

    Original source

    1. [1]
      Bilateral massive nephroblastomatosis in infancy.Telander RL, Gilchrist GS, Burgert EO, Kelalis PP, Goellner JR Journal of pediatric surgery (1978)

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