crease

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crease

(krēs),
A line or linear depression as produced by a fold.
See also: fold, groove, line.

crease

(krēs) a line or slight linear depression.
flexion crease , palmar crease any of the normal grooves across the palm that accommodate flexion of the hand by separating folds of tissue.
simian crease  a single transverse palmar crease formed by fusion of the proximal and distal palmar creases; seen in congenital disorders such as Down syndrome.

crease

Etymology: ME, creste, crest
an indentation or margin formed by a doubling back of tissue, such as the folds on the palm of the hand and sole of the foot.

crease

(krēs)
A line or linear depression as produced by a fold.
See also: fold, groove, line

crease

(krēs)
A line produced by a fold.

gluteofemoral crease

The crease that bounds the inferior border of the buttocks.

inframammary crease

The attachment of the inferior edge of the breast to the chest wall; the location of the film during craniocaudal filming of the breast.
Enlarge picture
SIMIAN CREASE: Normal palmar crease
Enlarge picture
SIMIAN CREASE: Simian crease

simian crease

A crease on the palm of the hand, so called because of its similarity to the transverse flexion crease found in some monkeys. Normally the palm of the hand at birth contains several flexion creases, two of which are separate and approx. transverse. When these two appear to fuse and form a single transverse crease, a simian crease is present. The crease may be present in a variety of developmental abnormalities, including Down syndrome, rubella syndrome, Turner syndrome, Klinefelter syndrome, pseudohypoparathyroidism, and gonadal dysgenesis.
See: illustration

crease

(krēs)
A line or linear depression as produced by a fold.
See also: fold, groove, line
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