Kaplan-Meier curves depicting (A) progression-free survival and (B) overall survival of patients with clear cell carcinoma subtypes. CC, pure clear cell carcinoma; CC-EM-M, mixed clear cell and endometrioid carcinoma; CC-SER-M, mixed clear cell and serous carcinoma; CC-EM-I, indeterminate clear cell vs. endometrioid carcinoma; CC-SER-I, indeterminate clear cell vs. serous carcinoma. In both panels, survival of patients with grade 3 pure endometrioid carcinoma (EM) and pure serous carcinoma (SER) are plotted for comparison.