患者男,56岁。四肢出现斑块伴痒1个月。双前臂伸侧、双手背双下肢伸侧、双膝关节、右足踝部可见直径约5~15cm不规则片状暗红色斑块,质硬;双胫前红斑压痛(+)。皮损组织病理示:真皮及皮下脂肪小叶内可见组织细胞及多核巨细胞组成的上皮样结节,中央可见纤维素样变性。诊断:皮下型结节病,II期。 Male patient, 56 years old. Extremities with plaque and itching 1 month. Double forearm extensor side, both hands with both lower extremity extensor, knees, right ankle visible diameter of about 5 ~ 15cm irregular flaky dark red plaque, hard; trisomy erythema tenderness (+). Pathological lesions showed: dermal and subcutaneous fat lobules visible tissue cells and multinucleated giant cells composed of epithelial nodules, the central visible degeneration of cellulose. Diagnosis: subcutaneous sarcoidosis, II.