Also called: target cells

Morphology: canine red blood cells with a bullseye appearance. Caused by increased ratio of cell membrane to hemoglobin content which results in a central bulge.

Look alike: torocytes

Clinical relevance: may be associated with regenerative anemia (polychromatophilic codocytes), iron deficiency anemia (hypochromic codocytes), liver disease and hypercholesterolemia (normochromic codocytes).  Only observed in canine red blood cells with central pallor.