BACKGROUND: This study evaluated the impact of breast MRI on surgical planning in selected cases of @entity0 ( @entity3 or @entity3821 ). MRI was used when there was ambiguity on clinical and/or conventional imaging assessment. METHODS: Consecutive @entity1 with @entity0 undergoing breast MRI were included. Clinical, mammogram and ultrasound findings and surgical plan before and after MRI were recorded. MRI findings and histopathology results were documented and the impact of MRI on treatment planning was evaluated. RESULTS: MRI was performed in 181/1416 (12.8%) cases ( @entity3 155/1219 (12.7%), @entity3821 26/197 (13.2%)). Indications for MRI were: clinically dense breast tissue difficult to assess (n  =  66; 36.5%), discordant clinical/conventional imaging assessment (n  =  61; 33.7%), @entity1137 in clinically dense breast tissue (n  =  22; 12.2%), palpable/mass-forming @entity3821 (n  =  11; 6.1%); other (n  =  19; 10.5%). The recall rate for assessment of additional lesions was 35% (63/181). Additional biopsy-proven @entity5 was found in 11/29 (37.9%) ipsilateral breast recalls and 8/34 (23.5%) contralateral breast recalls. MRI detected @entity5 (unsuspected on conventional imaging) in 5/179 (2.8%). The additional information from MRI changed management in 69/181 (38.1%), with more unilateral surgery (wider excision or mastectomy) in 53/181 (29.3%), change to bilateral surgery in 12/181 (6.6%), less surgery in 4/181 (2.2%). Clinical examination estimated histological size within 20  mm in 57%, conventional imaging in 55% and MRI in 71%. CONCLUSION: MRI was most likely to show concordance with histopathology in the 'discordant assessment' and 'invasive lobular' groups and less likely for 'challenging clinically dense breast tissue.' MRI changed management in 69/181 (38.1%).

Impact of selective use of breast MRI on surgical decision-making in @entity1 with newly diagnosed operable XXXX .

@entity1 :: ('9606', 'Species') :: ['women'] @entity1137 :: ('MESH:D018275', 'Disease') :: ['invasive lobular carcinoma'] @entity3821 :: ('MESH:D002285', 'Disease') :: ['DCIS'] @entity0 :: ('MESH:D001943', 'Disease') :: ['breast malignancy'] @entity5 :: ('MESH:D009369', 'Disease') :: ['contralateral malignancy', 'malignancy'] @entity3 :: ('MESH:D009362', 'Disease') :: ['invasive cancer']
@entity0 :: (MESH:D001943,Disease) :: ['breast cancer']
