Gangliogliomas: A report of five cases

Area of Science:

• Neuropathology
• Neuro-oncology

Background:

• Gangliogliomas are rare neoplasms of the Central Nervous System (CNS).
• This study investigates the pathological, clinical, and radiological characteristics of gangliogliomas.

Observation:

• Five cases of ganglioglioma were identified from 1560 surgically resected brain tumors (0.32% incidence).
• Patient ages ranged from 7 to 65 years (4 males, 1 female).
• Tumor locations included the lateral ventricle, temporal, parietal, and frontal lobes, with seizure durations from 1 to 9 years.

Findings:

• Diagnosis was based on a dual population of neoplastic ganglionic and glial cells.
• Glial components comprised pilocytic astrocytes, fibrillary astrocytes, oligodendrocytes, and anaplastic cells.
• Histopathological grading revealed one Grade I, three Grade II, and one Grade III ganglioglioma.
• Astrocytes were the predominant glial component; oligodendrocytes, particularly anaplastic forms, represented a rare finding.

Implications:

• Understanding the diverse pathological features of gangliogliomas is crucial for accurate diagnosis and treatment.
• The presence of oligodendrocytes, especially anaplastic types, may indicate a more aggressive tumor behavior.
• Further research into the specific roles of glial subtypes in ganglioglioma pathogenesis is warranted.