患者男,56岁,农民。右手背,右前臂及右上臂大小不等紫红色无痛性结节8个,红斑有部分溃烂约一年半。于1999年4月来我所就诊。自诉约一年半前右手食指与中指指缝背侧外伤后感染、化脓,在乡卫生院用抗生素治疗,抗感染治疗均不见好转,紫红色结节逐渐扩大并沿手背、前臂及上臂上伸侧漫延,无其他自觉症状。患者既往体健,家族其他成员无类似 Male patient, 56 years old, farmer. Right back, right forearm and right arm ranging from purple red painless nodules 8, some erythema ulcerate about a year and a half. In April 1999 came to my clinic. About a year and a half ago, his right index finger and middle finger were dorsal wounds and infected with septicemia. In the township hospitals, they were treated with antibiotics and the anti-infective therapy did not improve. The purple nodules gradually expanded and extended along the back of the hand, forearm and upper arm Side of the extension, no other symptoms. Past patient health, no other family members similar