Crabtree Matthew, Ji Ping, Cindy Cai Jennifer, Qing Xin, Extraosseous Plasmacytoma of Thyroid Arising in Hashimoto’s Thyroiditis, Journal of Hematalogy and Oncology Research, Volume 4, Issue 1, 2020, Pages 6-16, ISSN 2372-6601, https://doi.org/10.14302/issn.2372-6601.jhor-20-3552. (https://openaccesspub.orgjhor/article/1459) Keywords: plasmacytoma; multiple myeloma; extramedullary; extraosseous; Hashimoto's thyroiditis; IgG4; differential diagnosis