Intraventricular tumors in tuberous sclerosis.

Area of Science:

• Neuro-oncology
• Pediatric Neurology
• Neurosurgery

Background:

• Tuberous sclerosis is a genetic disorder that can lead to the development of tumors in various organs, including the brain.
• Intraventricular tumors in tuberous sclerosis often present with obstructive hydrocephalus.
• Subependymal giant cell astrocytomas are the most common central nervous system tumors associated with tuberous sclerosis.

Purpose of the Study:

• To review cases of tuberous sclerosis with intraventricular tumors.
• To analyze initial symptoms, diagnostic methods, and treatment outcomes.
• To discuss the glial origin and optimal surgical management of these tumors.

Main Methods:

• Review of 11 institutional cases and 34 literature cases of tuberous sclerosis with intraventricular tumors.
• Analysis of clinical presentation, radiological findings, and histopathological data.
• Evaluation of surgical treatment outcomes, including radical excision and shunting procedures.

Main Results:

• Intraventricular tumors were frequently associated with hydrocephalus due to their location near the foramen of Monro.
• Microscopic examination commonly revealed giant cell subependymal astrocytoma.
• Surgical treatment, particularly direct radical excision, showed favorable outcomes.

Conclusions:

• Giant cell subependymal astrocytomas are a significant neurosurgical complication of tuberous sclerosis.
• Early diagnosis and surgical intervention are crucial for managing hydrocephalus and improving patient outcomes.
• Direct surgical excision is proposed as the most effective treatment strategy for these intraventricular tumors.