Palmar Crease Examination

**Semantic type:** Intellectual Product

**Definition:** When examining the infant's palm for abnormalities, the examiner may note a single transverse palmar crease, which is found in 5% of newborns and is frequently inherited as a familial trait. However, single palmar creases can be associated with Down's syndrome and other genetic disorders, or with fetal alcohol syndrome.

**Synonyms:** - Inspection of palm crease