Soprano to undergo surgery

International opera star Ruth Ann Swenson has been diagnosed with breast cancer, her publicist said Wednesday.

The 43-year-old soprano, who has just completed singing the leading role of Marguerite in Gounod’s “Faust” at the Metropolitan Opera in New York City, will undergo surgery Tuesday at Memorial Sloane-Kettering Cancer Center.

In a statement released by publicist Georgiana Francisco, Swenson said her prognosis was excellent “and I look forward to returning to the Met in the spring.” Swenson, who performed here at Los Angeles Opera’s 20th Anniversary Gala in April, said she would receive chemotherapy treatment “as a precautionary measure” following surgery.