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Ruptured Massa Intermedia Secondary to Hydrocephalus
Ahmed El Damaty1, Soenke Langner2, Henry W S Schroeder3
1Department of Neurosurgery, Kasr Al Ainy School of Medicine, Cairo University, Cairo, Egypt; Department of Neurosurgery, University Medicine Greifswald, Greifswald, Germany.
World Neurosurgery
|November 10, 2016
Summary
Ruptured massa intermedia (MI) can occur due to hydrocephalus. This case report confirms that acute third ventricle dilation from hydrocephalus causes MI rupture, a finding previously assumed.
Area of Science:
- Neurology
- Neurosurgery
- Neuroanatomy
Background:
- Hydrocephalus can lead to structural changes within the brain.
- The massa intermedia (MI) is a midline thalamic structure that can be affected by ventricular dilatation.
Observation:
- A case report details a patient who developed secondary hydrocephalus after a posterior fossa hemangioblastoma resection.
- The hydrocephalus caused significant dilatation of the third ventricle, leading to the rupture of the massa intermedia.
Findings:
- The study documents the presence and subsequent absence of the massa intermedia.
- This observation supports the hypothesis that acute third ventricular dilatation causes MI rupture in hydrocephalic patients.
Implications:
- Absent massa intermedia is a common finding in hydrocephalic patients, likely due to rupture.
- This case provides direct evidence for the mechanism of massa intermedia rupture in the context of hydrocephalus.
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