肌红蛋白尿是一种暗色尿,对血液试剂带试验呈阳性反应。作者报告3例皮肌炎(一种有特征性皮损的多发性肌炎的亚型)患者明显地出现了这种情况。例1.男,20岁。入院前3个月指关节发红,1个月后登楼困难,再过1个月出现尿中带血,血液试剂带试验阳性,继续观察直到4周后出现全身疼痛、头痛,不适和进行性对称性肢体无力,诊断为病毒性疾病,以后又出现轻度吞咽困难及皮疹。检查:踝、肘、膝等处有红色玫瑰疹,面及躯干有弥漫性红色皮疹,有肌肉压痛但无消瘦,近端肌肉较远端肌肉更为无力。用 Multistix 尿试验示:血液4+,蛋白2+。新鲜尿显微镜检查示颗粒管型8+,但未见红细胞。ANA 阳性,滴度1/1280,DNA 结合率正常,血清 CPK38 680IU/L(正常< Myoglobinuria is a dark urine with a positive test on blood test strips. The authors report this clearly in 3 patients with dermatomyositis, a subtype of polymyositis with characteristic lesions. Example 1. Male, 20 years old. 3 months before admission, the knuckles were red, and difficulties in ascension one month later. In another month, there was blood in the urine and the blood test was carried with the test strips. The patients continued to observe general pain, headache, discomfort and progress until 4 weeks later Symmetry limb weakness, the diagnosis of a viral disease, and later appeared mild dysphagia and rash. Check: ankle, elbow, knee and other places at the red rose rash, face and trunk diffuse red rash, tender but no weight loss, the proximal muscles more distal weakness. Urine test with Multistix shows: blood 4 +, protein 2+. Fresh urine microscopy showed granular tube type 8 +, but no red blood cells. ANA positive, titer 1/1280, DNA binding rate normal, serum CPK38 680IU / L (normal <