cerebellopontine angle tumor

vestibular schwannoma

a benign but life-threatening tumor arising from Schwann cells, usually of the vestibular division of the eighth cranial nerve in early stage; produces hearing loss, tinnitus, and vestibular disturbances and in late stages cerebellar, brainstem, and other cranial nerve signs and increased intracranial pressure.

cerebellopontine angle tumor

Acoustic neuroma, see there.
References in periodicals archive ?
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.
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.
Causes of symptomatic glossopharyngeal neuralgia include cerebellopontine angle tumors, nasopharyngeal carcinomas, carotid aneurysms, tonsillar abscesses, neurilemmomas of cranial nerve IX, multiple sclerosis, and Eagle syndrome.
Marangos et al described a unique analysis of ABR thresholds in patients with cerebellopontine angle tumors.
Correlation of ABR and medical imaging in patients with cerebellopontine angle tumors.
Hypoglossal-facial nerve anastomosis for facial nerve palsy following surgery for cerebellopontine angle tumors.
Computed tomography and/or magnetic resonance imaging can be obtained to rule out cerebellopontine angle tumors and brainstem lesions, especially in patients with unilateral tinnitus.