137, 138, 139 However, a primary (true) EMP is a monoclonal plasma cell neoplasm that arises de novo in soft tissue without evidence for concurrent bone marrow involvement (see Table 55-2). There is evidence that extramedullary tissue may be a more common primary site of myeloma cell ...
and <10% marrow plasma cell content 48 Preneoplasmic plasma cell disorder Smoldering myeloma (Indolent myeloma, asymptomatic myeloma) Not formally described in feline literature; however, at least one reported feline case would be consistent with the description 48 Malignant plasma cell disorders—Myelo...