Figure 1From: High ALDH1A1 expression correlates with poor survival in papillary thyroid carcinomaALDH1A1 expression by immunohistochemical staining. (A) Normal thyroid tissue showed low expression of ALDH1A1. (B) PTC case demonstrated high expression of ALDH1A1 (×200). (C) High expression of ALDH1A1 was detected in a PTC case with extrathyroid invasion (×200). (D) High expression of ALDH1A1 was detected in a PTC case with lymph node metastasis (×200).Back to article page