Which of the following is not a criterion the radiologist uses to evaluate calcifications?

The evaluation of calcifications in mammography is a critical process for radiologists, as it helps in assessing the risk of breast cancer. The criteria used include number, morphology, and distribution of the calcifications, all of which provide essential information about their potential significance.

Stability versus change over time, while important in the overall assessment of breast tissue, is not a direct criterion used to evaluate calcifications at a single point in time during a mammogram. Instead, stability is typically assessed through comparison with prior mammograms over a series of years, aiding in determining whether any changes have occurred. This historical context is valuable, but it does not form part of the immediate evaluation criteria for calcifications visible on the mammogram itself.

In summary, the correct answer reflects that while stability versus change over time is relevant in monitoring breast tissue, it is not a primary consideration when radiologists first evaluate calcifications.