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Related Experiment Videos

Recurrent pheochromocytomas in children.

S H Ein1, B Shandling, D Wesson

  • 1Division of General Surgery, Hospital for Sick Children, Toronto, Ontario, Canada.

Journal of Pediatric Surgery
|October 1, 1990
PubMed
Summary

Pediatric pheochromocytomas can recur, often presenting with hypertension. Recurrent tumors, frequently in the opposite adrenal gland, are typically small and successfully treated, emphasizing the need for vigilant follow-up.

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Area of Science:

  • Pediatric Endocrinology
  • Oncology
  • Surgical Oncology

Background:

  • Pheochromocytomas are rare neuroendocrine tumors originating from chromaffin cells.
  • Pediatric pheochromocytomas, though infrequent, present unique diagnostic and management challenges.
  • Recurrence rates and patterns in pediatric patients require further investigation.

Purpose of the Study:

  • To analyze the clinical characteristics, treatment, and outcomes of recurrent pheochromocytomas in children.
  • To identify potential predictors or patterns associated with tumor recurrence.
  • To evaluate the efficacy of surgical management for recurrent pediatric pheochromocytomas.

Main Methods:

  • Retrospective review of 13 pediatric patients diagnosed with 20 pheochromocytomas between 1958 and 1987.

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  • Analysis of tumor characteristics, treatment strategies, recurrence patterns, and patient outcomes.
  • Utilized computed tomography scans and biochemical tests (vanillylmandelic acid, norepinephrine) for diagnosis.

    • Main Results:

    • Five of 13 patients experienced 12 recurrences, with four patients having five recurrences over 6 years.
    • Recurrent tumors were often found in the contralateral adrenal gland.
    • All recurrent tumors were excised successfully, with patients remaining normotensive post-treatment.
    • Vanillylmandelic acid was the most consistent biochemical marker for recurrence.

    Conclusions:

    • Recurrent pediatric pheochromocytomas can occur without specific predictive patterns, highlighting the importance of long-term surveillance.
    • Recurrence is often signaled by the return of hypertensive symptoms.
    • Surgical excision remains an effective treatment for recurrent pheochromocytomas in children, leading to favorable outcomes.