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How is 'stable benign calcification' defined?

Hope this is the right place for this question.  Is breast benign calcification stability based on morphology, size, distribution or growth rate?  I have a foci of calcification in my bct sight (had lumpectomy 7 years ago). Benign characteristics confirmed by tomosynthesis.  Although the type of calcification is not recorded by the radiologist, I am assuming it is caused by fat necrosis. My original IDC/ILC and associated DCIS did not have any calcifications.
Last 2 Reports: Stable. Foci of benign calcification have remained unchanged. Category: 2 - benign.
However, over the past two years it has increased in size from a couple of microcalcifications (2012) to a cluster of micro and macro sized ones and to a total area of about 0.5 to 1cm (2014). The increase is immediately obvious on looking at the film (both CC and LMO), even to my untrained eye, and even more obvious when comparing with films of past years. I do not believe I have a recurrence but am confused as to what 'stable' actually means in this instance and have not been able to find a satisfactory answer on the net.  I guess this question is about whether the wording on these reports is adequate. They don't give a description, state the location or the size of this cluster.  In fact, the lasted report is almost exactly the same as they were before 2012 when there were no calcifications in this area of the breast.  I have a couple of other unchanged calcifications in other areas of the same breast which these earlier report referred to.  Shouldn't the radiologist have said something about the increase or is it irrelevant given the morphology?
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In terms of morphology, skin, vascular, coarse or popcorn-like, large rod-like, round, rim, dystrophic, milk of calcium, and suture calcifications are typically benign, whereas amorphous, coarse heterogeneous, fine pleomorphic, and fine linear or fine-linear branching calcifications are suspicious.

In terms of distribution, descriptors are listed in increasing likelihood of malignancy: diffuse, regional, grouped (formerly known as clustered), linear, and segmental.

Stable means not significantly changed. This can refer to size, morphology, and/or distribution.
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