PTX3 and polycystic ovary syndrome: In all groups, FF PTX-3 levels were significantly higher than serum PTX-3 levels (lean PCOS: 23.31 ± 1.33 vs. 6.67 ± 0.35 ng/mL; overweight PCOS: 12.54 ± 1.05 vs. 6.04 ± 0.40 ng/mL; UEI: 7.01 ± 0.54 vs. 4.68 ± 0.29 ng/mL; p < 0.001 for all, Wilcoxon signed-rank test), highlighting a pronounced local accumulation in the follicular compartment.