Amniotic Band Syndrome With Congenital Absence of the Nose and Upper Lip: A Dental Anesthesia Challenge-A Case Report.
Amniotic Band Syndrome (ABS) is a congenital disorder which is caused by the entrapment of fetal parts in fibrous amniotic bands while in utero. It is found in 1 in 1200 to 15000 live births. There is no gender or ethnic predisposition. Abnormalities can involve the cranium, face, trunk, abdomen, and extremities. Extre...