TY - JOUR T1 - IgG4-related Disease Mimicking a Paratesticular Tumor and Pelvic Lymph Node Metastasis JF - The Journal of Rheumatology JO - J Rheumatol DO - 10.3899/jrheum.220131 SP - jrheum.220131 AU - Eri Sugawara AU - Taiki Sato AU - Kazuaki Katsumata Y1 - 2022/06/15 UR - http://www.jrheum.org/content/early/2022/06/09/jrheum.220131.abstract N2 - IgG4-related disease (IgG4-RD) is a systemic fibro-inflammatory disease characterized by tumor-like mass with infiltration of IgG4-positive plasma cells.1 ER -