EEG with focal sharp slow waves

What it means

EEG with focal sharp transient waves of a duration between 80 and 200 msec followed by a slow wave.

Rare diseases that can present with this4

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category