A patient with anemia is found to have a elevated level of serum ferritin, but a low transferrin saturation. What is the most likely diagnosis?

A Iron deficiency anemia
B Anemia of chronic disease ✓
C Sideroblastic anemia
D Hemolytic anemia

Explanation

Anemia of chronic disease is characterized by elevated serum ferritin levels, but low transferrin saturation, due to the inflammatory response and hepcidin-mediated reduction in iron availability.

Source

UpToDate
Hematology Hematology: Anemia Hematology: Anemia Hard MEDICAL Confidence: medium