title: Hematology problem: plasma cell leukemia in multiple myeloma.
mesh_terms: D001853:Bone Marrow / Q000473:pathology; D005260:Female; D006801:Humans; D007952:Leukemia, Plasma Cell / Q000097:blood*; D008875:Middle Aged; D009101:Multiple Myeloma / Q000097:blood*; D009378:Neoplasms, Multiple Primary / Q000097:blood*; D011379:Prognosis