脱疽表现为患肢暗红、紫红或青紫，下垂更甚，肌肉萎缩。趺阳脉搏动消失，患肢持久性疼痛，夜间尤甚。其证候是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28519' and id < 2328722 and id<>'2328722' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28519' and id > 2328722 and id<>'2328722' order by id asc limit 5