Early complications and symptoms of
cerebellopontine angle tumor surgery: a prospective analysis.
Conclusion: The most common
cerebellopontine angle tumor is acoustic neuroma which is followed by meningioma, epidermoid and arachnoid cyst.
Preoperative versus postoperative role of vestibular-evoked myogenic potentials in
cerebellopontine angle tumor.
Finally, brain MRI performed one year later demonstrated interval resection of the right
cerebellopontine angle tumor without evidence of residual tumor (Figure 3(d)).
Concurrent Vestibular Schwannoma and Meningioma Mimicking a Single
Cerebellopontine Angle Tumor.
for mastoidectomy, stapes surgery,
cerebellopontine angle tumor resection, and other otologic procedures).
The differential diagnosis includes glomus jugular tumors,
cerebellopontine angle tumor, malignant melanoma, esthesioneuroblastoma, undifferentiated carcinoma, lymphoma, and plasma cell granuloma.
The authors found six cases reported to have malignant degeneration after radiation therapy for a
cerebellopontine angle tumor.
Positional nystagmus has been reported in patients with a
cerebellopontine angle tumor, Arnold-Chiari malformation, multiple sclerosis, lateral medullary infarction, or brainstem contusion.
These lesions account for 8 to 10% of all intracranial tumors and more than 90% of all
cerebellopontine angle tumors.
2 Meningioma constitutes 5 10% of
Cerebellopontine angle tumors with rare tumours constituting only a small percentage out of which epidermoid cyst is the most frequent.
They concluded that claudin-1 was a very useful adjunct to EMA in meningiomas with equivocal morphologic features or with weak/focal EMA expression, and that the lack of claudin-1 expression by schwannomas was very useful in the context of differential diagnosis with fibroblastic meningiomas, particularly of
cerebellopontine angle tumors.
