Laparoscopic surgery was done through three small incisions, and after an hour of searching, the appendix was not located.
After the operation, the doctor claimed the patient did not tell him she had had an appendectomy possibly during either gallbladder or tubal ligation surgery in the past. On one of those occasions, she may have had an incidental appendectomy—removal of a normal appendix to theoretically prevent appendicitis in the future. It's an operation rarely done today.
She was discharged after a brief hospital stay. There was a bit of a fuss about "unnecessary surgery" and what, if anything, the surgeon told the patient after the procedure. A phone conversation with him was secretly recorded by the patient's daughter. An investigation is underway.
You might be interested in two questions. Can you get appendicitis again after you've had an appendectomy? Other than previous surgery, is there another explanation for a patient who does not have an appendix?