患者女,73岁。因左肩部斑块10年就诊。患者10年前洗澡时发现左肩部黄豆大丘疹,无自觉症状,缓慢增大,但未予重视。近1年皮损明显增大伴有瘙痒,患者为明确诊断于2011年6月17日来我科就诊。既往体健,家族成员中无类似疾病患者。体格检查:一般情况好,全身浅表淋巴结未触及,全身各系统检查无异常。皮肤科检查:左肩部见一个约5.0 cm×5.0 cm×0.2 Female patient, 73 years old. 10 years because of left shoulder plaque treatment. Patient was found in the left shoulder when papules papules 10 years ago, no symptoms, slowly increased, but did not pay attention. Nearly 1 year lesions significantly increased with pruritus, the patient is a clear diagnosis in June 17, 2011 to our department. Past physical health, family members no similar diseases. Physical examination: the general situation is good, the body superficial lymph nodes not touched, the body of the system check no abnormalities. Dermatological examination: see a left shoulder about 5.0 cm × 5.0 cm × 0.2