1　病例介绍患者,男,56岁。因左腹股沟及左阴囊红斑丘疹8年,溃烂2年入院。丘疹逐年增大,边界清,痒痛,能忍受。2年前两处红斑丘疹有渗液,局部糜烂,溃烂,痒痛感明显。曾经中、西医治疗无显效。查体:生命体征正常、无贫血貌,心肺正常,肝脾不大,左腹股沟部和左侧阴囊处可见暗红色14 1 case presentation patient, male, 56 years old. Due to left groin and left scrotum erythematous papules for 8 years, ulceration was admitted for 2 years. The pimples increase year by year, and the borders are clear, itchy and bearable. Two erythematous papules had effusions two years ago, with local erosion, ulceration, and itchiness. Once Chinese and Western medicine treatment was not effective. Physical examination: normal vital signs, no anemic appearance, normal heart and lung, small liver and spleen, dark red in the left groin and left scrotum