Palmar crease

A palmar crease is a type of crease on the palm. A single transverse palmar crease also called simian crease is sometimes associated with Down syndrome.^[1] Other types of creases include the Sydney crease and the Suwon, or double transverse palmar crease.^[2]

A single transverse palmar crease, one type of palmar crease.

Analysis of palmar creases is not very objective on the contrary to fingerprint analysis.^[3] Palmar creases are sometimes used as a preoperative landmark for identification of deep anatomical structures. This method was shown to be unuseful.^[4]