Robin Roberts celebrates 100 days since transplant

FILE - This Aug. 20, 2012 file photo released by ABC shows co-host Robin Roberts during a broadcast of "Good Morning America," in New York. Roberts has said goodbye to "Good Morning America," but only for a while. The "GMA" anchor made her final appearance Thursday, Aug. 30, before going on medical leave for a bone marrow transplant. Roberts' departure was first planned for Friday, but she chose to exit a day early to visit her ailing mother in Mississippi. In July she first disclosed that she has MDS, a blood and bone marrow disease. She will be hospitalized next week to prepare for the transplant. The donor will be her older sister, Sally-Ann Roberts, who was on hand for Thursday's emotional send-off. (AP Photo/ABC, Donna Svennevik, file)
Donna Svennevik

"Good Morning America" co-host Robin Roberts says she's reached a "major milestone" in her bone marrow transplant recovery.

Roberts, who underwent the transplant to treat MDS, a blood and bone marrow disease, celebrated 100 days since her surgery on Saturday.

She celebrated the big day by being reunited with her dog KJ, who was being taken care of by friends while she recovered.