Clinic-Pathological Features of Breast Ductal Carcinoma in Situ with Micro-Invasion

Cancer Invest. 2020 Feb;38(2):113-121. doi: 10.1080/07357907.2020.1715422. Epub 2020 Jan 24.

Abstract

Background: To investigate the differences of clinic-pathological features among ductal carcinoma in situ (DCIS), ductal carcinoma in situ with micro-invasion (DCIS-MI) and early invasive carcinoma (IDC) in stage T1.Methods: From January 2014 to December 2018, 308 cases DCIS, DCIS-MI 92 cases and 111 cases of T1a, 343 cases of T1b, and 1032 cases of T1c were investigated in a retrospective analysis. The population and clinic-pathological characteristics including age, menstrual status, surgical mode, lymph node status and molecular markers were compared in each group. Survival rate of all patients were followed-up for 5 years.Results: Compared with DCIS-MI group, the higher breast-conserving rate and lower lymph node metastasis rate in the DCIS group were shown in the DCIS-MI group (p < .05). There were no significant differences in tumor diameter, number of tumors, ER, PR, HER2 and Ki67 expression, molecular typing, (p > .05). The expression of Ki67 in T1a, T1b and T1c groups increased gradually with elevated grades (p < .05). The proportion of HER2-positive patients in DCIS-MI group was significantly higher than that in T1a-b-c (p < .05). There were no significant differences in DFS and OS between the 3 groups (p > .05).Conclusions: The clinic-pathological features of DCIS-MI are similar to those of DCIS and T1a, but significantly different from T1c.

Keywords: Breast cancer; DCIS; DCIS-MI.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Biomarkers, Tumor / biosynthesis
  • Breast Neoplasms / metabolism
  • Breast Neoplasms / pathology*
  • Breast Neoplasms / surgery
  • Carcinoma in Situ / metabolism
  • Carcinoma in Situ / pathology*
  • Carcinoma in Situ / surgery
  • Carcinoma, Ductal, Breast / metabolism
  • Carcinoma, Ductal, Breast / pathology*
  • Carcinoma, Ductal, Breast / surgery
  • Carcinoma, Intraductal, Noninfiltrating / metabolism
  • Carcinoma, Intraductal, Noninfiltrating / pathology*
  • Carcinoma, Intraductal, Noninfiltrating / surgery
  • Humans
  • Immunohistochemistry
  • Kaplan-Meier Estimate
  • Ki-67 Antigen / biosynthesis
  • Lymphatic Metastasis
  • Middle Aged
  • Neoplasm Invasiveness
  • Neoplasm Staging
  • Pathology, Clinical / methods*
  • Receptors, Estrogen / biosynthesis
  • Receptors, Progesterone / biosynthesis
  • Retrospective Studies
  • Young Adult

Substances

  • Biomarkers, Tumor
  • Ki-67 Antigen
  • Receptors, Estrogen
  • Receptors, Progesterone