Breast carcinoma with spontaneous regression after needle biopsy: a case report and literature review.

ABSTRACT:

Background

Spontaneous regression (SR) of cancer is a rare condition in which the cancer partially or completely disappears without treatment. We report a case of breast cancer with tumor regression and spontaneously induced T-cell-mediated immunological responses in a surgical specimen obtained after core needle biopsy (CNB).

Case description

A 52-year-old woman presented with a mass in the right breast. Mammography showed a high-density mass with fine serrated margins in the right lower outer quadrant. Breast ultrasonography showed an irregular hypoechoic mass with a maximum diameter of 22 mm. CNB was performed and revealed an invasive ductal carcinoma with negative estrogen receptors, positive progesterone receptors, and negative HER2 (1+). The Ki67 index was 70% to 80%.

SUBMITTER: Sasamoto M 

PROVIDER: S-EPMC10333769 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature