High power view of a bone marrow aspirate from a patient with multiple myeloma of the IgA type. Multiple abnormal plasma cells can be seen in this view, including a binucleate form (small arrows). The large cell on the right has an abnormal nucleus and a cytoplasm with a reddish (flame-like) tint, due to the presence of IgA protein (arrow).
Courtesy of David S Rosenthal, MD and William C Moloney, MD.
