Breast Cancer

, Volume 18, Issue 3, pp 152–160 | Cite as

MR and US imaging for breast cancer patients who underwent conservation surgery after neoadjuvant chemotherapy: comparison of triple negative breast cancer and other intrinsic subtypes

  • Hiroshi Nakahara
  • Yukiko Yasuda
  • Eiichiro Machida
  • Yorio Maeda
  • Hidemi Furusawa
  • Kansei Komaki
  • Mayumi Funagayama
  • Mayumi Nakahara
  • Shozo Tamura
  • Futoshi Akiyama
Special Feature Imaging findings of triple-negative breast cancer



Neoadjuvant chemotherapy (NAC) is commonly utilized to treat operable breast cancer. The purpose of this study was to review the findings of ultrasonography (US) and magnetic resonance (MR) imaging in patients treated with breast conservation surgery (BCS) after NAC with a focus on intrinsic subtypes.


Eighty-six patients underwent BCS after NAC. The tumors were classified into four subgroups by receptor status. US and MR were performed before and after NAC. The tumor diameters in US and MR after NAC were examined for correlations with pathological tumor distances in the specimens from BCS after NAC.


The correlation coefficient (r) of US to pathological tumor size was 0.3 in all tumors, 0.6 in HER2-type tumors, and 0.7 in triple negative breast cancers (TNBC). The correlation coefficient of tumor size in MR to pathological tumor size was 0.9 in TNBC, and other correlations were not statistically significant.


The correlation between tumor size in MR and pathological tumor size in triple negative breast cancers corresponded best. This information is one of the clues to selecting patients for BCS after NAC.


Triple negative breast cancer Neoadjuvant chemotherapy Magnetic resonance imaging Ultrasonography Pathology 



We thank Mr. Abe and Mr. Uwai in our laboratory and all the stuff in the radiological and pathological department in our hospital for preparing and managing the patient data.


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Copyright information

© The Japanese Breast Cancer Society 2010

Authors and Affiliations

  • Hiroshi Nakahara
    • 1
  • Yukiko Yasuda
    • 1
  • Eiichiro Machida
    • 1
  • Yorio Maeda
    • 1
  • Hidemi Furusawa
    • 1
  • Kansei Komaki
    • 1
  • Mayumi Funagayama
    • 1
  • Mayumi Nakahara
    • 2
  • Shozo Tamura
    • 2
  • Futoshi Akiyama
    • 3
  1. 1.Breastopia Namba Hospital, Breastopia Medical CorporationMiyazakiJapan
  2. 2.Department of Radiology, Miyazaki Medical CollegeMiyazaki UniversityMiyazakiJapan
  3. 3.Department of PathologyCancer Institute HospitalTokyoJapan

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