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[Malignant changes in a craniopharyngioma].

K Akachi1, H Takahashi, B Ishijima

  • 1Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan.

No Shinkei Geka. Neurological Surgery
|August 1, 1987
PubMed
Summary

This case study details a rare instance of craniopharyngioma in a child that underwent malignant transformation post-treatment. The tumor recurred aggressively, necessitating further intervention and revealing a poorly differentiated squamous cell carcinoma alongside the original craniopharyngioma.

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Area of Science:

  • Pediatric Oncology
  • Neuro-oncology
  • Pathology

Background:

  • Craniopharyngioma is a rare brain tumor typically arising in the sellar region, often affecting children.
  • Malignant transformation of craniopharyngioma is exceptionally rare, posing significant diagnostic and therapeutic challenges.

Observation:

  • A 10-year-old girl presented with symptoms of obstructive hydrocephalus due to a calcified craniopharyngioma.
  • Initial treatment involved a ventriculo-peritoneal shunt and partial tumor resection, with pathological diagnosis of adamantinomatous craniopharyngioma.
  • Following irradiation, the tumor regressed, but the patient developed panhypopituitarism.

Findings:

  • Recurrence of the craniopharyngioma occurred three years later, presenting with visual disturbances and hydrocephalus.

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  • Second surgery revealed malignant transformation, with pathological diagnosis of poorly differentiated squamous cell carcinoma coexisting with adamantinomatous craniopharyngioma.
  • The malignant component showed atypical cells invading surrounding tissues.

    • Implications:

    • This case highlights the potential for craniopharyngioma to undergo malignant change, even after initial treatment.
    • It underscores the importance of vigilant follow-up and thorough pathological examination in suspected recurrent craniopharyngioma.
    • Understanding the mechanisms of malignant transformation in craniopharyngioma may lead to improved treatment strategies for rare aggressive variants.