Ferritin is increased as a byproduct of the inflammation, which studies suggest, are the result of TAMs. Some ferritin is also likely the result of release from cell death. L-ferritin is the most prevalent in cancer. Elevated ferritin is associated with a poor prognosis in many cancers. It also correlates with CRP, WBC in this study. 1 mg/ml of serum ferritin correlates to 8mg of stored Fe.