CNS foam cells

What it means

The presence of foam cells, a type of macrophage that localizes to fatty deposits on blood vessel walls, in the central nervous system.

Rare diseases that can present with this1

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