[Retrospective study conducted in northern Finistère about the role of breast MRI in normal breast screening, experience in 51 patients].
OBJECTIVE
To study the role and indications of breast MRI in normal breast screening.


METHODS
Retrospective study of 51 patients (mean age of 51 years) conducted in northern Finistère. Each patient had a normal (BI-RADS 1 or 2) breast screening (mammography and echography). Four indications for MRI were chosen: screening of high-risk patients, high-density breasts, radio-clinical discordance, and breasts prostheses. Breast MRI were reviewed according to BI-RADS classification. Abnormalities categorized in BI-RADS 4 or 5 were confirmed histologically.


RESULTS
Thirteen patients underwent histological analysis. Nine invasive carcinomas were identified (six invasive lobular carcinomas (ILC), two mixed carcinomas, one invasive ductal carcinoma). For these patients, the reason for performing MRI was a radio-clinical discordance.


CONCLUSIONS
The study demonstrates the breast MRI value for radio-clinical discordance and the key role of MRI in diagnostic challenge of ILC. In literature review, MRI has a role even if breast screening is normal: radio-clinical discordance, screening of patients with high-risk, breasts prostheses in certain cases. Breast density comes as an additional criteria to perform this exam.
Lapierre-Combes
M
M
Service d'imagerie médicale, hôpital d'instruction des armées Clermont-Tonnerre, BP 41, 29240 Brest Armées, France. marie.lapierrre@wanadoo.fr
Rousset
J
J
Combes
E
E
Chinelatto
S
S
Dupré
P-F
PF
André
V
V
D000328:Adult; D000368:Aged; D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000175:diagnosis / Q000473:pathology; D002277:Carcinoma / Q000175:diagnosis / Q000473:pathology; D044584:Carcinoma, Ductal / Q000175:diagnosis / Q000473:pathology; D005260:Female; D005602:France; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008327:Mammography; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D012189:Retrospective Studies; D012307:Risk Factors