Which of the following is typically associated with postoperative scarring?

Postoperative scarring often leads to changes in the breast tissue that can mimic the appearance of breast cancer on imaging studies. Scar tissue can create areas that may show up as dense or irregular regions in mammograms. These changes can resemble the features of a carcinoma, causing confusion or misinterpretation during radiological assessment. This is particularly important for radiologists to recognize, as an understanding of the patient's surgical history can assist in differentiating between benign postoperative changes and potentially malignant processes.

Increased skin dimpling may occur, but it is not specifically a hallmark of scar tissue; it can be seen in various other conditions, including malignancy. Regular breast tissue density does not correlate with scarring since scarring might lead to abnormal density patterns rather than maintaining a uniform appearance. While postoperative changes can lead to lumps due to scar tissue or even fat necrosis, it's not correct to say that lumps "always" result, as the degree of lump formation can vary with healing and individual anatomical factors.