A case of left breast cancer with left modified radical mastectomy followed by mammoplasty one year ago. FDG PET CT scan showed moderate metabolic activity around the left breast reconstruction flap.
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The inner quadrants of the left breast demonstrate a well-defined, marginally enhancing lobulated area , which follows fat signal intensity in all sequences. This likely represents an area of fat necrosis.
Fat necrosis can occur in normal breast tissue after trauma, surgery or as a complication after flap reocstruction of the breast. Fat necrosis may calcify over time.