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. 2026 Jul 30;16:1876327. doi: 10.3389/fonc.2026.1876327

Figure 2.

Panel A displays a survival curve comparing ovarian cancer subtypes over time, showing serous type has the lowest survival probability. Panel B is a pie chart showing ovarian cancer subtype distribution, with serous being the most common. Panel C further illustrates this distribution focusing on serous, by removing the uncategorized “other” section. Panels D, E, F, and G show age distributions by subtype: serous, endometrioid, mucinous, and clear cell, respectively, with most cases diagnosed in ages forty to seventy-nine.

Survival and demographic distribution of ovarian cancer subtypes. (A) Overall survival probability for ovarian cancer (OC) patients (N=66295) from the SEER Database, separated by their designated subtypes. Endometrioid OC (EndOC), Mucinous OC (MOC), Clear Cell OC (CCOC). (B) Overall distribution of OC subtypes in the dataset. (C) Distribution of the epithelial OC subsets discussed in this paper, excluding the poorly defined “other” subtype. (D–G) Age distribution for serous, endometrioid, mucinous, and clear cell ovarian cancer, respectively. Data were extracted from the Surveillance, Epidemiology, and End Results (SEER) database for OC confirmed by positive histology from 1992-2022 (N=66295). Serous subtypes were not further subdivided into low-grade and high-grade, therefore both are listed under a single serous category. Dedifferentiated was not classified in this data set. Codes for the designated OC subtype were defined by (50, 51). Data collected from: (Surveillance Research Program, National Cancer Institute SEER*Stat Software Version 9.0.42.0., 2024) (52).