amnionic band

(redirected from Simonart ligaments)

am·ni·on·ic band

[MIM*217100]
strands of amnion following its rupture, which can wrap around limbs, digits, face, and internal organs, causing constriction and amputation; the genetics of it is unclear.
See also: congenital amputation.

am·ni·on·ic band

, amniotic band (am'nē-on'ik band, am'nē-ot'ik)
Strand of amnionic tissue adherent to the embryo or fetus, which constricts the embryonic limbs.
See also: congenital amputation
Synonym(s): amnionic band syndrome, anular band, constriction ring (2) , Simonart bands (1) , Simonart ligaments.