A 60-year-old reports several weeks of unsteadiness and brief vertigo. Hearing is preserved. The oVEMP is normal and symmetric, but the cVEMP is absent on one side.

Affected earContralateral ear

Affected-ear cVEMP is absent with a normal oVEMP — the less common inferior-division pattern.

A normal oVEMP with an absent cVEMP on the same side is most consistent with which diagnosis?

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Positional vertigo with a curiously absent cervical response

A normal oVEMP with an absent cVEMP on the same side is most consistent with which diagnosis?

Positional vertigo with a curiously absent cervical response

A normal oVEMP with an absent cVEMP on the same side is most consistent with which diagnosis?