乳房外Ｐａｇｅｔ病（ＥＭＰＤ）是多发于中老年人的较少见疾病 ,临床常易误诊为湿疹 ,主要靠组织病理及免疫组化确诊。我科诊治１例 ,报告如下。患者男 ,６２岁 ,主因阴囊右上方红斑、糜烂半年就诊。半年前无明显诱因阴囊右上方出现樱桃大小暗红色斑块 ,曾在外院多次就医 ,诊 Extramammary Paget’s disease (EMPD) is a less common disease in the middle-aged and elderly. It is often misdiagnosed as eczema in clinic, which is mainly confirmed by histopathology and immunohistochemistry. I diagnosed a case of treatment, the report is as follows. Male patient, 62 years old, mainly due to erythema on the right upper scrotum, erosive six months treatment. Six months ago, no obvious incentive to appear on the top right corner of the cherry reddish brown patches of dark spots, repeatedly hospitalized outside the hospital