A podiatrist from Olympia Fields was found guilty Monday of sexually assaulting an elderly woman who suffered from a sprained ankle in 2006.

Circuit Judge Michael Toomin convicted Anthony Overton, 63, of Olympia Fields, in Cook County Criminal Court on two counts of aggravated criminal sexual assault. Overton faces a minimum sentence of 12 years in prison.

According to the woman’s testimony, she went to Overton’s office in the 9600 block of South Halset Street in June 2006 because of pain in her right foot. After an X-ray, she was diagnosed with a sprained ankle, but during the examination, Overton rubbed her breasts and inserted his finger in her vagina and rectum, she said, according to the Chicago Tribune. Overton allegedly told the victim he had done her "a favor" by detecting an infection and not charging her extra.

On the other hand, the defense lawyers said a full physical exam was something necessary for foot patients. According to Overton’s testimony, he often conducted such exams to check for other ailments that may be indirectly producing foot problems, such as blood clots or internal bleeding.

However, prosecutors said Overton went beyond the scope of a typical podiatry exam. Moreover, the woman, now 77, had not given him consent to conduct the gynecological examination.

The patient "went in for treatment of pain in her lower right foot. She did not envision or contemplate a gynecological examination,” Toomin said.

Additionally, three other women testified that Overton subjected them to inappropriate exams.

After the verdict, Overton, who will be sentenced May 23, declined to comment.