Overview
Evaluate for changes in the tumor microenvironment before/during neoadjuvant chemotherapy and after treatment in patients diagnosed with HER2-positive advanced breast cancer and receiving neoadjuvant cancer therapy and surgery for curative purposes.
Eligibility
Inclusion criteria i. Adult patients over 18 years of age ii. Patients undergoing curative treatment including neoadjuvant chemotherapy after confirmation of breast cancer without distant metastases iii. Clinical T stage II-IV patients iv. HER2 positive breast cancer patients
Exclusion criteria If you have other comorbidities that, according to the researcher's judgment, may affect the results of the study