Fig. 1From: PSMA expression level predicts differentiated thyroid cancer aggressiveness and patient outcomeDifferent patterns of PSMA immunoreactivity in papillary thyroid cancer. a, b Faint staining is observed in a few endothelial cells, quantified as 1% (PSMA, × 4 and × 20). c, d Moderate staining is seen in some endothelial cells (PSMA, × 4 and × 20). e, f Strong stain is present in almost all endothelial cells (PSMA, 4x and 20x)Back to article page