患者男,57岁。以咳嗽、多痰、胸闷20天入院。4年前有银屑病史,经中药治疗未复发。入院检查:神志清楚,皮肤无皮疹。双肺呼吸音粗,闻及干罗音。心率80次,律齐,各瓣膜区未闻及病理性杂音。腹平软,肝脾未及。神经系统(一)。拟诊支气管感染,给予头孢拉定2.0静注,每日2次。第4天,患者两手背部沿静脉可见散在帽针头或扁豆大小炎性丘疹、斑丘疹,淡红色,境界清楚,渐扩大呈蚕豆样,表面被覆 Male patient, 57 years old. To cough, phlegm, chest tightness 20 days admission. 4 years ago, history of psoriasis, the Chinese medicine treatment did not relapse. Admission examination: Conscious, skin rash. Breath sounds coarse lungs, smell and dry rales. Heart rate 80 times, law Qi, the valve area is not known and pathological murmur. Abdomen soft, liver and spleen not yet. Nervous system (a). To be diagnosed bronchial infection, give cefradine 2.0 intravenous injection, 2 times a day. On the fourth day, both sides of the back of the patient showed diffuse papules or lentils of papules, rash and reddish along the veins.