The entertainer was stricken with abdominal pain Aug. 11 and taken by ambulance from her home to the Corona Regional Medical Center.
She was diagnosed as having volvulus, a condition in which the colon becomes twisted. She was released from the hospital Friday after part of her colon was removed.
"I'm here alive and that's what's most important," she said during a news conference Monday at the hospital.
Doctors said she will need about two months to fully recuperate, but she is planning to fulfill previously scheduled singing commitments.
Born in Sonora in 1949, Adriana went to Mexico City from Tijuana in the early 1970s and made more than a dozen films from 1977 to 1983.
She is the ex-wife of Mexican singer Marco Antonio Solis.