He had a rare condition called amniotic band syndrome.
他有一种罕见的症状叫做羊膜带综合症。
英语百科
Amniotic band constriction
(重定向自Amniotic band)
Amniotic band constriction (also known as "amniotic band syndrome", "ADAM complex", "Amniotic band sequence", "Congenital constriction bands" and "Pseudoainhum") is a congenital disorder caused by entrapment of fetal parts (usually a limb or digits) in fibrous amniotic bands while in utero.