患者，男，26岁。排便时剧痛伴便后卫生纸上带血2月。肛门检查见肛管后正中线下端深达皮肤全层的纵行溃疡。该患者最可能的诊断是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30576' and id < 2467417 and id<>'2467417' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30576' and id > 2467417 and id<>'2467417' order by id asc limit 5