Eruptive vellus hair cyst

What it means

A cutaneous cyst that is small (one or two millimeters in diameter) and painless, presenting as a follicular papule that usually is skin colored but may have a reddish or brownish tinge.

Eruptive vellus hair cysts result from occlusion and cystic dilation of vellus hair follicles.

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