“PLASMACELL NEOPLASMS WITH SPREADING IN THE BLOOD AND TISSUES: EXTRAMEDULLARY MYELOMA DISEASE A RARE AGGRESSIVE FORM OF MULTIPLE MYELOMA (First of two parts): Extra Medullary Myeloma” (2024) Mediterranean Journal of Hematology and Infectious Diseases, 17(1), p. e2025005. doi:10.4084/MJHID.2025.005.