Chief of Naval Operations Adm. Lisa Franchetti was treated successfully for early-stage breast cancer this summer, the service revealed Friday.

Franchetti, the Navy’s highest-ranking military officer, discovered she had stage 1 breast cancer during a routine mammogram in late June. She then underwent outpatient surgery in July at Walter Reed National Military Medical Center, followed by radiation therapy.

During her surgery, she temporarily transferred power to her vice chief of naval operations.

Franchetti also began maintenance........

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