EEG with multifocal slow activity

What it means

Multifocal slowing of cerebral electrical activity recorded along the scalp by electroencephalography (EEG).

Rare diseases that can present with this2

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