Absent antihelix

What it means

No discernible ridge between concha and triangular fossa and helix.

This finding is common in a protruding and cupped ear, where the superior and inferior parts of the antihelix are often absent. This is distinct from partial absence of the antihelix as may occur in, for example, underdeveloped inferior crus of the antihelix.

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