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Infantile multilocular renal cyst.

K Yoshimura1, T Oka, Y Tada

  • 1Department of Urology, Radiology, Osaka University Medical School, Japan.

Urologia Internationalis
|January 1, 1992
PubMed
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This case study presents a 14-month-old infant with a multilocular renal cyst, diagnosed microscopically as partially differentiated dysplasia. Findings suggest developmental disturbances as the cause of this rare pediatric kidney condition.

Area of Science:

  • Pediatric Urology
  • Renal Pathology
  • Developmental Biology

Background:

  • Multilocular renal cyst (MRC) is a rare kidney tumor, typically presenting in infancy.
  • Its etiology remains debated, with theories including cystic nephroma or Wilms' tumor variants.
  • Early diagnosis and management are crucial for optimal outcomes in pediatric kidney diseases.

Observation:

  • A 14-month-old Japanese male infant presented with an abdominal mass.
  • Clinical and radiographic findings suggested a multilocular renal cyst in the right kidney.
  • Total nephrectomy was performed due to surgical complexity and to rule out malignancy.

Findings:

  • Microscopic examination revealed immature glomeruloid tissue, primitive tubules, rhabdomyocytes, and nerve fibers.

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  • Histological diagnosis confirmed multilocular renal cyst with partially differentiated dysplasia.
  • Pathologic findings support a developmental disturbance as the etiology for the cystic formation.

    • Implications:

    • This case highlights the importance of thorough histopathological examination for diagnosing rare pediatric renal masses.
    • The findings suggest a potential link between developmental disturbances and the formation of multilocular renal cysts.
    • Understanding the pathogenesis of MRC can inform future diagnostic and therapeutic strategies in pediatric nephrology.