Mammographic appearance is pathognomonic of this benign entity when there is dependent calcium layering within breast cysts.
Characteristically, calcium particles within cysts produce linear, "tea cup" or "crescent shaped" calcifications on a true lateral. On a CC view, these calcifications can appear smudged, where the beam is oriented more vertical with respect to the calcifications.
Sometimes the microcystic milk of calcium cannot be seen at all on the CC view or just look like a vague smudge appearance. This is a very reassuring sign for benign breast disease.