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Volume 6 Issue 6 (June, 2018)

Original Articles

Cerebellopontine Angle Tumors, Presentation, Treatment and Outcome: Experience at a Tertiary Care Institution
Ravi Shankar Prasad

Aims and objectives: To study tumors of cerebellopontine angle with respect to age, sex, clinical presentation, radiological and pathological appearance, management and complications related to tumor excision. Material and methods: This was a prospective study carried out in the department of neurosurgery, Institute of Medical Sciences, BHU with clinic radiologic diagnosis of SOL in cerebellopontine angle on 38 patients. Various parameters were analyzed. Results: 15 (39.5%) were male and 23 (60.5%) were female. Average age of presentation was 37.95 and standard deviation was 14.22.Eight patients were having tumors less than or equal to 3cm size while 30 patients were having large tumors that is more than 3cm size.Hearing loss was the commonest symptom present in 78.95% patients followed by tinnitus and disequilibrium in 65.8%. Disequilibrium, headache, facial symptoms and lower cranial nerve symptoms were seen only in larger tumors. Acoustic schwannoma was the commonest (76.3%), followed by meningioma (13.16%) and epidermoid (7.9%).Based on MRI we found solid lesion in 8 cases, 26 patients had mixed echogenic tumors and cystic appearance was seen in 4 patients. In ten patients ventriculoperitoneal shunt was placed first then excision of tumor was done and 28 patients underwent excision directly. Facial nerve dysfunction was the commonest postoperative complication followed by trigeminal nerve dysfunction and lower cranial nerve involvement. Eight patients had residual tumor and 2 patients expired. Conclusion: These tumors usually present when becomes large and there is no significant sex predominance. Smaller tumors are usually solid and larger are mixed echogenic. Key words: Cerebellopontine Angle Tumors, schwannoma.

 
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