Verrucous epidermal nevus

What it means

A type of epidermal nevus (which represent Blaschkoid hamartomas of the skin that result from mosaic post-zygotic mutations) that appears as skin-colored-to-brown, sharply demarcated, papillomatous papules that coalesce into plaques. The majority of these nevi are either present at birth or occur within the first year of life.

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