Castleman disease (CD) is a rare, non-clonal lymphoproliferative disorder w/ systemic sxs & maybe linked w/ herpesvirus 8, POEMS or TAFRO syndrome. Mimickers include lymphoma, sarcoma, IgG4-RD, Infections (EBV, HHV8, HIV, CMV, TB), Autoimmune Dz (RA, SLE, Stills) https://t.co/29M0jePXHd