Koos Grade (Vestibular Schwannoma)
Koos Grade (Vestibular Schwannoma) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
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What this is
Koos Grade (Vestibular Schwannoma) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. Koos Grade (Vestibular Schwannoma) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Koos WT, Day JD, Matula C, Levy DI. Neurotopographic considerations in the microsurgical treatment of small acoustic neurinomas. J Neurosurg. 1998;88(3):506-512. Read the source ↗
Worked example: Koos grade IV: a large tumor that compresses the brainstem and displaces the fourth ventricle.
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