Department of Geriatrics Third Affiliated Hospital of Soochow University 213003 Province;
Jiangsu Engineering Research Center for Tumor Immunotherapy Third Affiliated Hospital of Soochow University 213003 Province;
Department of Pathology Third Affiliated Hospital of Soochow University 213003 Province;
Department of Rheumatology and Immunology Third Affiliated Hospital of Soochow University 213003 Province;
Multicentric reticulohistiocytosis; Papulonodular skin lesions; ARTHRITIS; CD68; Case report;