Plasma cell gingivitis (PCG) is characterized by massive infiltration of plasma cells into the subepithelial tissue. It is a rare condition; the cause of which is still not fully understood.

A new research paper was published in Oncotarget, Volume 16, on March 21, 2025, titled "NSD2-epigenomic reprogramming and maintenance of plasma cell phenotype in t(4;14) myeloma." ...