Fig. 5From: The value of thyroperoxidase as a prognostic factor for differentiated thyroid cancer -- a long-term follow-up studyRelationship between TPO level and TNM stage: The figure shows how TPO expression decreases when TNM increases in terms of intensity, as in stage I more positive than negative cases are found, and in stage II, III and IV more negative than positive cases are observedBack to article page