Amnionic 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.congenital amputation. SYN: amnionic adhesions, amnionic band syndrome, anular band, constriction ring (2), Simonart bands (1), Simonart ligaments.