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Updated: Jul 6, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Pituitary adenoma associated with intraventricular meningioma: case report
Leodante B da Costa1, Jay Riva-Cambrin, Asheesh Tandon
1Division of Neurosurgery, Toronto Western Hospital, University of Toronto, Toronto, Canada.
Abstract:
Although rare, the association of intracranial meningiomas and pituitary adenomas has been reported. Intraventricular meningiomas are unusual, and meningiomas located in the fourth ventricle are even more so. We report a patient who harbored a prolactin-secreting pituitary adenoma and a fourth ventricle meningioma who was treated with surgical resection of the latter and medical treatment for the former. To our knowledge, this is the first report of such an unusual association.
Insights
This report details a rare case of a prolactin-secreting pituitary adenoma co-occurring with a fourth ventricle meningioma. The patient underwent surgical removal of the meningioma and medical management for the pituitary adenoma.
Area of Science:
- Neuro-oncology
- Endocrinology
Background:
- Intracranial meningiomas and pituitary adenomas can rarely co-occur.
- Intraventricular meningiomas are uncommon, with those in the fourth ventricle being exceptionally rare.
Observation:
- A patient presented with both a prolactin-secreting pituitary adenoma and a fourth ventricle meningioma.
- This dual diagnosis represents a highly unusual clinical presentation.
Findings:
- The patient received surgical resection for the fourth ventricle meningioma.
- Medical treatment was administered for the prolactin-secreting pituitary adenoma.
Implications:
- This case highlights the possibility of concurrent meningioma and pituitary adenoma, even in rare locations.
- Further investigation into the potential mechanisms underlying such associations may be warranted.
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