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Increased height in patients with medulloblastomas

S C Robertson1, L L Ackerman, V C Traynelis

  • 1Division of Neurosurgery, University of Iowa College of Medicine, Iowa City, USA.

Neurosurgery
|October 6, 1997
PubMed
Summary

Patients with medulloblastomas, a type of brain tumor, were found to be disproportionately taller than expected. This suggests a potential link between medulloblastomas and growth hormone production or growth factors.

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Area of Science:

  • Pediatric Oncology
  • Neuro-oncology
  • Endocrinology

Background:

  • Medulloblastomas share histological similarities with neuroendocrine tumors.
  • Medulloblastomas are known to express growth factor receptors and produce growth hormones.
  • Preoperative height in medulloblastoma patients has not been extensively studied.

Purpose of the Study:

  • To investigate the preoperative height characteristics of patients diagnosed with medulloblastomas.
  • To compare the height distribution of medulloblastoma patients with a control group.

Main Methods:

  • A cohort of 85 medulloblastoma patients (64 children, 21 adults) and 42 cerebellar astrocytoma patients (27 children, 15 adults) were analyzed.
  • Patient height and weight were documented using standardized growth charts.

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  • Data on age, sex, symptoms, radiographic findings, treatment, and survival were also collected.

    • Main Results:

    • 22.4% of medulloblastoma patients were above the 95th percentile for height preoperatively, compared to 7.1% in the control group.
    • 80.0% of medulloblastoma patients were above the 50th percentile for height, versus 54.8% in the control group.
    • Medulloblastoma patients showed a significant tendency towards increased height, disproportionate to weight loss, unlike cerebellar astrocytoma patients.

    Conclusions:

    • Medulloblastomas may be associated with altered growth hormone production or secretion.
    • The findings suggest a potential endocrine influence in the development or presentation of medulloblastomas.
    • Further research is warranted to elucidate the relationship between medulloblastomas and growth-regulating factors.