[…] redness, swelling & pain Early stage= lump w/ swelling, distention, pain, difficult lactation, chills, fever, headache, nausea, dire thirst Growing of the lump= local bright
[quizlet.com]
OBJECTIVE: The purpose of this study was to determine the mammographic and sonographic findings of injuries of the breast caused by seat belts in automobile accidents.
[ncbi.nlm.nih.gov]
In extreme cases, breast injury can even lead to fat necrosis and lump formation in the breast, as well as the formation of scar tissue.
[livestrong.com]