Rell, 58, was expected to remain at Danbury Hospital until Wednesday, officials said.
The governor was recovering Monday evening after being in surgery for much of the afternoon. Doctors told her staff that the mastectomy and reconstructive surgery were performed without any problems.
The governor’s office said tests showed the disease had not spread to her lymph nodes. Spokesman Rich Harris said Rell will probably not require radiation or chemotherapy after the surgery.
The cancer was discovered after a routine mammogram, 바카라사이트 her office said. The cancer did not appear on the mammogram itself, but was discovered during a biopsy of a non-cancerous calcium deposit. During the biopsy, the doctor noticed two additional deposits and removed both of them. One of the deposits proved to be cancerous.
Rell, a Republican, said in a statement that she still plans to address the Legislature on Jan. 5, the opening day of the new session.
Rell, the former lieutenant governor, became governor in July after John Rowland resigned amid threats of impeachment and a federal corruption investigation.
Connecticut’s only other woman governor, Ella Grasso, was diagnosed with ovarian cancer in 1980 while in office and died of the disease a year later.
Arizona Gov. Janet Napolitano underwent surgery last month to remove an ovarian cyst, which was benign, and her right ovary. She also had surgery in 2000 to have her right breast removed after being diagnosed with cancer.