男，25歲。肛門劇烈疼痛伴異物感1天，局部有腫物突出。平素便秘，無便血史。查體：T35.6℃，肛門口見直徑2.0cm腫物，稍硬，呈暗紫色，觸痛。最可能的診斷是
A、肛裂C
暫無解析
WefeelgreatregretthatwecannolongersupplythegoodsyouorderastheproductionhasbeendiscontinuedsincelastAugust.
Coca-Colafoundthatemployeeswhoparticipatedinwellnessandexerciseprogramsusedfewersickdaysandtendedtobemoreproductiveontheirjobs.
Paymentofthepurchaseistobeeffectedbyanirrevocableletterofcreditinourfavour,payablebydraftatsightinpoundssterlinginLondon.
Besusceptibleto
嚴厲懲處違反交規的人是良好交通秩序的保證。
