FGF19 and spindle cell hemangioma: Additionally, we observed a significant higher level of FGF19 in isolated TPOAb group compared with OH and SCH groups (78.7 [52.7–121.2] vs 252.0 [205.9–353.5], P <0.001; 95.8 [71.7–126.3] vs 292.4 [210.2–426.5] pg/mL, P <0.001).