title: Diagnostic accuracy of mammography, ultrasonography and magnetic resonance imaging in the detection of intraductal spread of breast cancer following neoadjuvant chemotherapy.
abstract: The purpose of this study is to evaluate the accuracy of mammography, ultrasonography, and contrast-enhanced magnetic resonance imaging for the diagnosis of intraductal spread of breast cancer following preoperative neoadjuvant chemotherapy. We evaluated a total of 168 areas of normal breast tissue outside the mass in 42 consecutive female patients with breast cancer using each imaging modality both before and after neoadjuvant chemotherapy. Neoadjuvant chemotherapy comprised two to four cycles of adriamycin-based CAF regimen. Multivariate analysis indicated that calcification on mammography and size of hypoechoic structures on ultrasonography prior to neoadjuvant chemotherapy shows a correlation with intraductal spread on pathologic study. Our study reveals that mammography and ultrasonography are useful in avoiding residual cancer cells caused by intraductal spread following conservative breast surgery.
authors.affiliation: Department of Radiology, Kochi University, Nankoku-shi, Kochi-Prefecture 783-8505, Japan. kubotak@med.kochi-u.ac.jp
authors.forename: Kei
authors.initials: K
authors.lastname: Kubota
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Ogawa
authors.forename: Akihito
authors.initials: A
authors.lastname: Nishioka
authors.forename: Shinji
authors.initials: S
authors.lastname: Kariya
authors.forename: Satoshi
authors.initials: S
authors.lastname: Itoh
authors.forename: Yoriko
authors.initials: Y
authors.lastname: Murata
authors.forename: Norihiko
authors.initials: N
authors.lastname: Hamada
authors.forename: Hironori
authors.initials: H
authors.lastname: Maeda
authors.forename: Yohsuke
authors.initials: Y
authors.lastname: Tanaka
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000592:standards*; D008327:Mammography / Q000592:standards*; D008875:Middle Aged; D020360:Neoadjuvant Therapy; D018365:Neoplasm, Residual; D016896:Treatment Outcome; D016217:Ultrasonography, Mammary / Q000592:standards*