The object of this case is not unthinking use of the all seeing "retrospectoscope", an instrument has 6/6 vision on hindsight. The teaching point here is to allow you to look at a case and train your eye to observe and recall the spiculated "runners" that radiate from a small solid lesion. You can train your eye to spot the "runners" and lead it to the mass even in a dense breast. This is a skill that you can aquire with practice and effort.
If you are reading mammograms in a busy noisy, distracting, overlit environment, you will miss these lesions most of the time. You need to review mammograms in an environment that allows you to concentrate on what you are doing. No phone.