TY - JOUR T1 - Multicentric Reticulohistiocytosis Can Mimic Rheumatoid Arthritis JF - The Journal of Rheumatology JO - J Rheumatol SP - 780 LP - 781 DO - 10.3899/jrheum.131062 VL - 41 IS - 4 AU - MEGAN L. KRAUSE AU - JULIA S. LEHMAN AU - KENNETH J. WARRINGTON Y1 - 2014/04/01 UR - http://www.jrheum.org/content/41/4/780.abstract N2 - Multicentric reticulohistiocytosis (MRH) is a rare non-Langerhans histiocytosis1,2. It is sometimes mistaken for rheumatoid arthritis (RA).A 56-year-old woman with a history of diabetes mellitus type 1 presented 24 years earlier with symptoms consistent with inflammatory arthritis. She was initially diagnosed with RA and treated with hydroxychloroquine, with good response. This was ultimately discontinued. Following discontinuation, she developed worsening joint symptoms as well as a pruritic widespread nodular skin eruption (Figure 1). A skin biopsy was performed, which … ER -