(a)
(b)
Figure 3: Analysis of collagen distribution. (a) The photomicrograph shows predominance of red in the testis of a control group fetus with 23 WPC, suggesting collagen type I presence. Picrosirius red with polarization ×20. (b) The photomicrograph shows predominance of red in prune belly fetal gubernaculum, suggesting collagen type I presence in a fetus with 31 WPC. Picrosirius red with polarization ×20.