On Wednesday, the UW doctor who ordered heavy chemotherapy and surgeries for Jennifer Rufer defended his decisions in court.

In 1998 Rufer was transformed from a pretty young newlywed to a cancer patient hiding her hair loss under a baseball cap.

In April of that year, Rufer began treatment at the University of Washington Medical Center, enduring progressively stronger chemotherapy, a hysterectomy and lung surgery.

A blood test made by Abbott Labs had shown a marker for cancer in Rufer's blood.

'This One Is The Worst'

Because that cancer marker would not go away, her doctor, Hisham Tamimi, ordered more and more treatment. He never questioned the test result.

"If I knew it was false positive, we would not have gone through all this," Tamimi testified.

But now, as Rufer sits in court, she knows she never had cancer, that the tests -- 44 in all -- were wrong.

At times Tamimi fought back tears as he talked about this case that haunts him.

Of the 2,500 cancer cases he's had in Seattle, "this one is the worst," he said.

Attorney Bill Leedom asked, "Do you still think about this case?"

"Every single day," Tamimi answered.

Simple Urine Test

Abbott Labs claims the doctor should have consulted with his lab about these odd results called "false positives."

The results can be checked with a simple urine test.

The university maintains it didn't know about the faulty test results.

Rufer is suing both Abbott and the UW Medical Center.

After the jury hears from the UW staff, it will be time for Abbott to mount its defense. Both sides hope to give the case to the jury by mid-June.