Multiple primary germinomas (ectopic pinealoma) of the brain

Area of Science:

• Neuro-oncology
• Pediatric oncology
• Neuropathology

Background:

• Intracranial germinomas are rare tumors, typically occurring in the pineal or suprasellar regions.
• Multiple primary germinomas are exceptionally uncommon, posing diagnostic and therapeutic challenges.

Observation:

• This report details a unique case of simultaneous primary germinomas in the corpus callosum and thalamus.
• The patient presented with symptoms related to the location of these distinct intracranial lesions.

Findings:

• Histopathological confirmation of germinoma in both the corpus callosum and thalamus.
• The patient achieved an excellent clinical outcome following a diagnostic biopsy and subsequent radiation therapy.

Implications:

• This case highlights the possibility of multiple primary intracranial germinomas.
• It underscores the effectiveness of biopsy and irradiation in managing these rare presentations.
• Further research into the pathogenesis of multifocal germinoma is warranted.