An example of high-grade serous carcinoma case presenting with ≥50% RT (3+): (A) x10, (B) x20, and (C) x60. A case of ovary with RT of 6% to 50% (2+): (D) x10, (E) x20, and (F) x60. A case of ovary with minimal RT of 0% to 5% (1+): (G) x10, (H) x20, and (I) x60.