Rosai-Dorfman病是一种少见的、病因不明的良性组织细胞增生性疾病,主要累及全身淋巴结,亦可累及皮肤、呼吸系统、泌尿系统等,累及皮肤时其皮损可表现为丘疹、结节、斑块,呈双侧对称分布的皮损较罕见[1]。现将我科诊断的1例双侧面颊部皮肤Rosai-Dorfman病报告如下。 Rosai-Dorfman’s disease is a rare and etiologically unknown benign tissue cell proliferative disease that mainly affects the whole body lymph nodes. It can also affect the skin, respiratory system, urinary system, etc. Skin lesions can be manifested as papules and nodules , Plaques, bilateral symmetrical lesion lesions are rare [1]. Now we diagnosed a case of bilateral cheek skin Rosai-Dorfman disease reported as follows.