Pectoralis amyotrophy

What it means

Wasting of the pectoral muscles, i.e., of the pectoralis major and pectoralis minor. This finding is often manifested by prominent axillary creases or double axillary creases.

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