Related Experiment Video
Updated: Dec 28, 2025
Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Sporadic Meningioangiomatosis Presenting as a Middle Cranial Fossa Arachnoid Cyst
Brian Y L Chan1, Khurshid Z Merchant2, Jennifer G C Teo2
1Department of Neurosurgery, National Neuroscience Institute, Singapore.
Background:
Meningioangiomatosis is an extremely rare meningovascular disease of the central nervous system that is characterized by the proliferation of leptomeninges, cortical vessels, and perivascular spindled cells. Although it is a benign, neoplastic disorder that carries a good prognosis after surgical excision, initial diagnosis may be challenging as radiologic findings are often variable and nonspecific.
Case Description:
In this report, we describe an unusual presentation of meningioangiomatosis presenting as a symptomatic middle cranial fossa arachnoid cyst.
Conclusions:
In view of the unexpected diagnosis and infrequency of this condition, the case is discussed in collaboration with current literature and management strategies.
Insights
Meningioangiomatosis, a rare central nervous system disorder, can present unusually as a middle cranial fossa arachnoid cyst. This case highlights diagnostic challenges and reviews management strategies for this benign neoplastic condition.
Area of Science:
- Neurology
- Neoplastic Disorders
- Vascular Diseases
Background:
- Meningioangiomatosis is a rare meningovascular disease of the central nervous system.
- It involves proliferation of leptomeninges, cortical vessels, and perivascular cells.
- Diagnosis can be challenging due to variable and nonspecific radiologic findings.
Observation:
- This report details an unusual presentation of meningioangiomatosis.
- The condition manifested as a symptomatic middle cranial fossa arachnoid cyst.
Findings:
- The case highlights an atypical clinical presentation of meningioangiomatosis.
- Radiological findings were initially suggestive of an arachnoid cyst, masking the underlying neoplastic process.
Implications:
- This case underscores the importance of considering meningioangiomatosis in the differential diagnosis of cranial fossa masses.
- Early and accurate diagnosis is crucial for effective surgical management and favorable prognosis.
- Further research into diagnostic markers and treatment strategies for meningioangiomatosis is warranted.
Related Concept Videos
01:19Cranial and Spinal Meninges
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...
01:21Aneurysm II: Clinical Manifestations and Diagnostic Studies