Cutaneous pili migrans

Cutaneous pili migrans is a piece of hair embedded in skin, typically appearing as a dark or reddish creeping dot or thread, in a similar presentation to cutaneous larva migrans. There may be associated pain, though generally no itch.

Signs and symptoms

CMP typically presents as a non-itchy dark or reddish creeping dot or thread, in a similar appearance to cutaneous larva migrans.

CMP may follow an injury or appear without cause.

Diagnosis is by its appearance and may require a magnifying glass. Treatment is by removing the piece of hair.

CMP is rare. The first description was given by Howard S. Yaffee in 1957.