Had to redo mammogram because breast tissue wasn't compressed & looked suspicious. caused great anxiety. why not done properly 1st time?

Screening: Mammograms sometimes don't compress all the tissue the same way because each woman has different anatomy. Areas that need extra compression (and sometimes ultrasound) are often found by the radiologist later when the study is read. This requires the patient to return for a diagnostic mammogram to settle any concerns. This two part process screens the largest number of women at the lowest cost.

Yes, it is possible: Initial mammogram may have not had enough compression an area, or the overlapping structures may have caused a summation shadow. The original mammogram may have been performed well but the radiologist saw something and wanted extra views. Extra/spot views provide focal compression over the area of concern and spread out the tissues more, to make sure there is nothing of concern in that area.

Mammo recall: It is rare that a patient is recalled for a technical error on a mammo,but occasionally it happens. Much more likely in your case is that the radiologist identified a potential abnormality on the screening study, which required special extra views to better evaluate.The "spot" compression on the extra views is much more effective at spreading out the tissue than the general compression of screenin