From: Ultrasound features of medullary thyroid cancer as predictors of biological behavior
N | Graded by TI-RADS | Serum Ct level (pg/mL) | Immunostaining | |||||
---|---|---|---|---|---|---|---|---|
Cal | TG | TTF1 | Syn | Ki-67 | CK-pan | |||
1 | 2 | 117 | + | – | + | NA | 2–3% | + |
2 | 2 | > 2000 | + | – | + | NA | <1% | + |
3 | 3 | 20.9 | + | – | + | + | NA | + |
4 | 3 | 960 | + | – | + | + | <1% | + |
5 | 3 | <2 | + | – | + | – | NA | – |