- - digital c. one of the grooves on the palmar surface of a finger, at the level of an interphalangeal joint. SYN: digital flexion c., digital furrow.- ear lobe c. a diagonal c. found on one or both earlobes with a possible connection to coronary heart disease in males.- palmar c. any of the several flexion creases normally found on the palm of the hand, occurring proximal to, but as a consequence of flexion at, the metacarpophalangeal joints.- simian c. a single transverse palmar c. formed by fusion of the proximal and distal palmar creases, so called because of its similarity to the transverse flexion c. seen in some monkeys; a common but not pathognomonic feature of Down syndrome; also found in 1% of the normal population.- Sydney c. a variation of the proximal transverse palmar flexion c. that reaches the ulnar side of the palm; associated with acute lymphocytic anemia in early childhood, rubella embryopathy, and Down syndrome. SYN: Sydney line.
* * *crease 'krēs n a line or mark made by or as if by folding a pliable substance (as the skin)crease vb, creased; creas·ing vt to make a crease in or on <aging had creased her face> vi to become creased
* * *(krēs) a line or slight linear depression, such as a shallow skin furrow.
Medical dictionary. 2011.