title: Intramammary Extension of Breast Cancer: Diagnosis with MR Mammography.
abstract: Purpose: Intramammary extension of breast cancer was investigated using contrast-enhanced magnetic resonance (MR) imaging by comparing MR findings with the histopathology of specimens used for pretreatment planning. Materials and Methods: Thirty-nine breast cancers were examined. The dynamic protocol was performed with a 2- or 3-dimensional fast spin echo sequence (1.5 T), once before and 2-5 times immediately after Gd-DTPA administration with an original fat suppression technique. The findings were correlated with the histopathology. Results: All main tumors showed early enhancement. All with direct invasion histopathologically showed spicular enhancement. The four patients who had separate nodular enhancement showed satellite lesions histopathologically. Three-typed MR findings were found to be indicative of an intraductal component. Conclusion: Various forms of breast cancer were reliably demonstrated using MR imaging. MR imaging could be useful for the pretreatment planning for patients with breast cancer.
authors.affiliation: Department of Radiology, Nagoya University School of Medicine, 65 Tsurumai, Shouwa-ku, Nagoya 466-0065, Japan.
authors.initials: Y
authors.lastname: Ando
authors.initials: H
authors.lastname: Fukatsu
authors.initials: T
authors.lastname: Ishigaki
authors.initials: T
authors.lastname: Endo
authors.initials: M
authors.lastname: Miyazaki