Prognosis of Metaplastic Breast Cancer: A Population-Based Matched Cohort Study.

ABSTRACT:

Purpose

Metaplastic breast cancer (metBC) is a rare subtype of breast cancer known for its challenging management. The impact of this histological subtype on prognosis remains unclear.

Methods

Data were collected from the Swedish Cancer Registry between 2008 and 2018. Patients with metBC were matched 2:1 with breast cancer cases of no special type (NST). Survival outcomes were analyzed using cause-specific hazard models for breast cancer specific survival (BCSS) and Cox proportional-hazards models for overall survival (OS).

Results

In total, 127 metBC patients were matched 2:1 with 245 NST patients, with a median follow-up period of 54 months. When adjusted for matching variables and treatment-related characteristics, metBC was not significantly associated with either

SUBMITTER: Bergman M 

PROVIDER: S-EPMC12848589 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature