Non-enhancing intraventricular tumours in adults

Area of Science:

• Neuro-oncology
• Neurosurgery
• Pathology

Background:

• Intraventricular tumors represent a small fraction of all brain neoplasms.
• Non-enhancing intraventricular lesions, predominantly subependymomas, are infrequently documented.
• Subependymomas can occasionally exhibit variable contrast enhancement patterns.

Purpose of the Study:

• To summarize the characteristics and management of intraventricular subependymomas.
• To highlight the recommended treatment approach for these rare tumors.

Main Methods:

• Review of literature on intraventricular tumors, focusing on subependymomas.
• Analysis of case reports detailing non-enhancing and enhancing subependymomas.
• Evaluation of treatment outcomes based on current clinical guidelines.

Main Results:

• Subependymomas are uncommon intraventricular tumors, with non-enhancing types being rarer.
• Variable contrast enhancement can be observed in some subependymoma cases.
• Gross total surgical resection is the established curative treatment.

Conclusions:

• Complete surgical resection is the cornerstone of managing intraventricular subependymomas.
• Adjuvant chemotherapy and radiotherapy demonstrate limited efficacy for these lesions.