Diffuse optic disc pallor

What it means

A pale yellow discoloration of the entire optic disc.

Temporal pallor is seen in conditions that selectively affect the papillo-macular bundle. The word temporal refers to the temporal bone at the side of the head.

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