#MayoIDCase This is the bone marrow aspirate (Wright Giemsa stain, 1000X) of a 26M (CA/TN/FL/MN) with ulcerative colitis on ustekunimab + steroids. H

#MayoIDCase This is the bone marrow aspirate (Wright Giemsa stain, 1000X) of a 26M (CA/TN/FL/MN) with ulcerative colitis on ustekunimab + steroids. H