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Related Concept Videos

Brainstem01:19

Brainstem

The brainstem, located inferior to the brain and superior to the spinal cord, serves as a bridge between the cerebrum and the spinal cord. It plays a vital role in relaying information and controlling critical life functions. It comprises three primary regions: the midbrain, pons, and medulla oblongata.
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
Brainstem: Control Centers of Medulla01:21

Brainstem: Control Centers of Medulla

The medulla oblongata is a crucial part of the brainstem responsible for controlling various autonomic and involuntary functions. It contains several nuclei, including the olivary, cuneate, gracile, and solitary nuclei.
Olivary Nucleus
The olivary nucleus, or inferior olivary nucleus, is located within the ventrolateral part of the medulla oblongata. It is primarily involved in motor coordination and motor learning. The olivary nucleus receives input from the spinal cord, cerebellum, and motor...

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Adult brainstem gliomas.

German Reyes-Botero1, Karima Mokhtari, Nadine Martin-Duverneuil

  • 1Service de Neurologie 2-Division Mazarin, Groupe Hospitalier Pitié-Salpêtrière, 47-83 boulevard de l'Hôpital, 75013 Paris, France.

The Oncologist
|March 3, 2012
PubMed
Summary

Adult brainstem gliomas are uncommon and often low-grade, suggesting a better prognosis than in children. Radiological classification aids treatment, but histological diagnosis is crucial for contrast-enhanced lesions.

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Area of Science:

  • Neuro-oncology
  • Radiology
  • Neurosurgery

Background:

  • Brainstem gliomas are rare in adults, comprising 1-2% of intracranial gliomas.
  • Adult brainstem gliomas exhibit a predominantly low-grade phenotype, contributing to a better prognosis compared to pediatric cases.
  • Tumor heterogeneity necessitates refined classification beyond radiological appearance.

Purpose of the Study:

  • To review current understanding and proposed radiological classifications of adult brainstem gliomas.
  • To highlight the diagnostic challenges and the role of histopathology in treatment planning.
  • To discuss current and potential future therapeutic strategies for adult brainstem gliomas.

Main Methods:

  • Review of literature on adult brainstem gliomas.
  • Analysis of proposed radiological classification systems (diffuse intrinsic low-grade, enhancing malignant glioma, focal tectal gliomas, exophytic gliomas).
  • Discussion of treatment modalities including radiotherapy, chemotherapy, and anti-angiogenic therapies.

Main Results:

  • Radiological classification aids treatment strategy but is imperfect without histological diagnosis.
  • Biopsies are often avoidable in diffuse non-enhancing gliomas but necessary for contrast-enhanced lesions.
  • Conventional radiotherapy is standard for low-grade and malignant brainstem gliomas; combined modality treatments require further evaluation.

Conclusions:

  • Histological diagnosis is critical for accurate classification and treatment of adult brainstem gliomas, especially contrast-enhanced types.
  • Further research into tumor biology is essential for identifying subgroups and improving therapeutic outcomes.
  • The role of novel therapies like anti-angiogenics needs further definition.