Objectification of anxiety.
Statistically, forty percent of people on earth have an elevated background of anxiety for various reasons. They wake up in the morning and are already anxious. They worry about work, about children, about money, about the future... And especially strongly such people are so anxious when they cannot find objective reasons for this very anxiety and set in motion their rich imagination.
What if it is a chronic disease? What if the radiologist (surgeon, therapist, any other doctor) missed something important on the picture?
For example, like now, in the world crisis, or in the plight of polar bears in the conditions of global warming... A person who has finally identified his anxiety becomes much easier. He knows what is happening, he is in control, he takes action, he is afraid, but he still feels better, because an external object has been found.