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Fig 1. A, Control NF stage 66 S. tropicalis thyroid (20à H&E stain). Bar = 100 μm. B, Control NF stage 66 S. tropicalis thyroid (40à H&E stain). Bar = 50 μm. C, Thyroid gland from NF stage 66 S. tropicalis exposed to 1.10 mg/L perfluorooctanesulfonate (40à H&E stain). Mild follicular cell hypertrophy indicated by tall columnar cells (black arrows) and vascular congestion indicated by vessel infiltration into the interâfollicular spaces (white arrows). Bar = 50 μm. H&E, hematoxylin and eosin; NF, Nieuwkoop and Faber.
Figure 2. A, Representative ovary sample from control 150 dpm S. tropicalis (1Ã). Bar = 0.5 cm. B, Representative ovary from 150 dpm S. tropicalis exposed to 1.10 mg/L perfluorooctanesulfonate noting heavy connective tissue accumulation (1Ã). Bar = 0.5 cm
Figure 3. A, Testes from control 150 dpm S. tropicalis (10Ã). Bar = 1 mm. BâD, Testes from 150 dpm S. tropicalis exposed to 1.10 mg/L perfluorooctanesulfonate (10Ã). Bar = 1 mm. D, Note segmentation, variation in size and multiple testis formation
