Aspects radiologiques des seins traités par lipomodelage après séquelles du traitement conservateur du cancer du sein

Breast lipomodelling has been used in our unit since 2002 to correct the sequelae of conservative treatment of cancer. Morphologically, satisfactory results have been recorded and the method is likely to develop considerably. However, the technique has also been questioned because of the possible deleterious radiological impact of injecting fat into the breast. The present work investigated the radiological aspect of conserved breast reconstructed by lipomodelling in a series of 21 patients undergoing ultrasound examination, mammography and MRI, before and after the procedure. Benign-looking microcalcifications were detected on 19% of the mammographies, small (<1 cm) oily cysts and complex cysts were visible on respectively 57 and 19% of ultrasound images, whereas 47% of the MRI scans indicated cytosteatonecrotic lesions. Even though multiple events could be observed, their frequency is close to that observed following other conventional breast surgery. Besides, there is clear radiological evidence of benignity. The conclusion of the study is that images obtained after lipomodelling are satisfactory and in no way suggestive of recurrence of breast cancer. Provided that radiologists and experts are aware of this pattern, there is no impact on the radiological follow-up of the patients.