Purpose: To demonstrate typical MR mammographic findings after plastic surgery of breast cancer.
Patients And Methods: Postoperative (7-38 months, median 13) MR mammographic examinations of 25 patients operated for breast cancer (11 latissimus dorsi-flaps (LAT), 14 rectus abdominis myocutaneous-flaps (TRAM)), were reevaluated. The examinations were performed with a breast coil at 1 T. The sequences applied were a fat-suppressed 2-D turbo IR-sequence proton-weighted and a T1-weighted FLASH 3-D sequence as dynamic series.
Results: Scars between the myocutaneous flap and the remaining breast tissue always appeared in form of a ligament or septum. Signal and perfusion characteristics of scar tissue and muscle stalk in this investigation were clearly different from those of tumour. One tumour recurrence and one fat necrosis was found and rectified by biopsy.
Conclusion: MR mammography is a very valuable diagnostic method for postoperative evaluation of myocutaneous flap-based therapy of breast cancer.
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