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Blood smear from a dog with autoimmune hemolytic anemia (Wright-Giemsa, 50X oil immersion). Erythrocytes exhibit increased polychromasia and anisocytosis, with many spherocytes present. Spherocytes lack central pallor and have smaller diameters than other cells present. Four mature neutrophils, a band neutrophil, and a monocyte are present .
Courtesy of Dr. John W. Harvey.