Abstract
It should have been a moment of huge relief. The biopsy specimen of the temporal artery was positive. We had answered the riddle of the patient's year-long fatigue, limb pain, and turbine-like noises in his head. He had giant-cell arteritis — not cancer, as he had feared. His disease would respond quickly to prednisone, and we had made the diagnosis before he had lost vision. The biopsy findings constituted a eureka moment.1 There was, however, a fly in the ointment. The report of the computed tomographic scan of the patient's abdomen, performed in search of an explanation for the symptoms . . .