The former Chilean military ruler, General Augusto Pinochet, has made a brief visit to hospital for what doctors say were routine tests.
Augusto Pinochet's family said he had suffered a stroke last month
It came two days before a hearing on whether to strip him of legal immunity.
Gen Pinochet is accused of involvement in a secret operation in which more than 100 left-wing activists vanished.
The Chilean Appeal Court hearing should have taken place last month but was delayed after the 89-year-old's family said he had suffered a minor stroke.
Lawyers for the former president insist on his innocence in the case, known as Operation Colombo.
Human rights campaigners have accused the general of exaggerating his health problems to try to win the sympathy of the courts.
He was also treated in hospital in May after suffering what aides said was a suspected mild stroke.