Ovarian carcinosarcoma is highly aggressive compared to other ovarian cancer histotypes.

Within the earliest SEER disease stage (Localized disease), OCS demonstrated the shortest survival of all histotypes ( Figure 3B ), though the difference between OCS and HGSOC did not reach statistical significance (mHR for HGSOC vs OCS: 0.79, 95% CI 0.57-1.09) ( Figure 4F ).

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