HER2 Positive Breast Cancer: 138 Real Stories

138 stories match breast cancer and HER2 positive. 123 of them mention chemotherapy.

Cancer Stories

A patient, who was diagnosed with Stage IV Breast CancerBreast Cancer

Hormone receptor-positive, HER2-positive breast cancer with later lung metastasis

Patient Info: Anonymized, Female | Stage IV

Biomarkers: Hormone receptor-positive; HER2-positive

Metastatic Site: Lung

The patient had hormone receptor-positive, HER2-positive breast cancer treated with standard therapy, then developed lung metastasis years later and continued molecular targeted therapy indefinitely while asymptomatic from the metastasis.

AZ Oncology Japan
OutcomeLiving With Cancer
Regina, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HER2-Positive Breast Cancer: Regina's Patient Story

Patient Info: Regina Ritter, Female, 50s | Stage IV

Biomarkers: HER2-positive

Metastatic Site: Liver | Lung

At the 2013 interview, Regina was living with metastatic HER2-positive breast cancer after liver metastasis at diagnosis, later recurrence, and inoperable lung metastasis treated with oral chemotherapy.

Krankheitserfahrungen.de
OutcomeLiving With Cancer
Leftfootforward, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HER2-Positive Breast Cancer: Leftfootforward's Survivor Story

Patient Info: Leftfootforward, Female, Under 40 | Stage IV

Biomarkers: HER2-positive

Metastatic Site: Brain | Liver

Leftfootforward was diagnosed with Stage IIB HER2-positive breast cancer in 2010 and metastatic brain/liver disease in 2012; after systemic therapy, Gamma Knife, craniotomy for necrotic tissue, partial liver lobectomy, and resumed Herceptin, her latest scans showed no evidence of disease.

BreastCancer.org (ES)
OutcomeCancer-Free / NED
Frédérique, who was diagnosed with Stage II Breast CancerBreast Cancer

Stage II HER2-Positive Breast Cancer: Frédérique's Survivor Story

Patient Info: Frédérique, Female, 40s | Stage II

Biomarkers: HER2-positive

Frédérique was listed as having complete remission after Herceptin/trastuzumab treatment for HER2-positive Stage II breast cancer.

Fondation ARC
OutcomeCancer-Free / NED
Pilar, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HER2-Positive Breast Cancer: Pilar's Patient Story

Patient Info: Pilar, Female, 40s | Stage IV

Biomarkers: Hormone receptor-positive; HER2-positive

Pilar was living with metastatic hormone receptor-positive, HER2-positive breast cancer, continuing systemic treatment with Zoladex, aromatase inhibitors, trastuzumab, and pertuzumab, and managing side effects with rehabilitation support.

MatchTrial Historias Reales
OutcomeLiving With Cancer
June, who was diagnosed with Invasive Ductal CarcinomaBreast Cancer

HER2-Positive Invasive Ductal Carcinoma: June's Patient Story

Patient Info: June Lee, Female, 40s

Biomarkers: HER2-positive / elevated HER2 in recurrent treatment context

June had DCIS treated in 2005 and a 2023 left-breast recurrence with lymph node involvement; after 6 months of chemotherapy and mastectomy with lymph node removal, she continued Phesgo injections.

BreastCancer.org (ES)
OutcomeCare Ongoing
Leanne, who was diagnosed with Stage IV Invasive Lobular CarcinomaBreast Cancer

Stage IV HR-Positive Invasive Lobular Carcinoma: Leanne's Patient Story

Patient Info: Leanne, Female, 50s | Stage IV

Biomarkers: ER-positive; PR-positive; HER2-positive

Metastatic Site: Brain

Leanne was first diagnosed in 2015 with Stage III triple-positive ILC and then diagnosed with metastatic lobular breast cancer with brain metastasis on April 4, 2018, causing major neurologic and work limitations.

Lobular Breast Cancer Alliance
OutcomeSetback / Progression
Eutha, who was diagnosed with Stage II Invasive Lobular CarcinomaBreast Cancer

Stage II HR-Positive Invasive Lobular Carcinoma: Eutha's Survivor Story

Patient Info: Eutha, Female | Stage II

Biomarkers: ER-positive; PR-positive; HER2-positive

Eutha completed clinical-trial immunotherapy, right mastectomy with lymph-node removal, chemotherapy, radiation and reconstruction for Stage II ER-positive, PR-positive, HER2-positive breast cancer, and returned to work and community life; no explicit NED/cancer-free status was provided.

Memorial Sloan Kettering
OutcomeSurvivorship / Surveillance
Jim, who was diagnosed with Breast CancerBreast Cancer

HER2-Positive Breast Cancer: Jim's Patient Story

Patient Info: Jim Keegan, Male, 70+

Biomarkers: HER2-positive; BRCA1/BRCA2 negative

Jim completed surgery, chemotherapy and 1 year of Herceptin for early-stage HER2-positive male breast cancer, then continued tamoxifen and yearly MSK surveillance while advocating for male breast cancer awareness.

Memorial Sloan Kettering
OutcomeCare Ongoing
Jennifer, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HER2-Positive Breast Cancer: Jennifer's Patient Story

Patient Info: Jennifer Feinberg, Female, 40s | Stage IV

Biomarkers: HER2-positive

Metastatic Site: brain

8+ years after her initial breast cancer diagnosis, she was living with metastatic HER2-positive breast cancer with brain metastases and receiving trastuzumab as her tenth line of treatment.

Dana-Farber
OutcomeLiving With Cancer
A patient, who was diagnosed with Stage III Invasive Ductal CarcinomaBreast Cancer

HER2-positive breast cancer complicated by severe anemia during chemotherapy

Patient Info: Anonymized, female, 40s | Stage III

Biomarkers: ER-negative; PR-negative; HER2-positive; germline BRCA1 likely pathogenic mutation

At 4.5-year follow-up, she remained free of breast-cancer recurrence and had no recurrence of the severe treatment-related anemia.

PubMed Central
OutcomeCancer-Free / NED
Tiffany, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HER2-Positive Breast Cancer: Tiffany's Patient Story

Patient Info: Tiffany Andrews, Female, Under 40 | Stage IV

Biomarkers: HER2-positive; ER-negative at recurrence

Metastatic Site: lungs|brain

Tiffany is living with metastatic HER2-positive breast cancer and continues treatment through a clinical trial after progression in the lungs and brain.

MD Anderson
OutcomeCare Ongoing
A patient, who was diagnosed with Stage II Breast CancerBreast Cancer

HER2-Positive Breast Cancer Treatment Followed by Multiple Myeloma

Patient Info: Anonymized, female, 50s | Stage II

Biomarkers: ER-negative; PR-negative; HER2 3+; Ki-67 70%

Postoperative imaging showed no breast cancer recurrence or distant metastasis, and the breast cancer was described as stable when a separate multiple myeloma diagnosis was made.

PubMed Central
OutcomeCancer-Free / NED
A patient, who was diagnosed with Stage II Invasive Ductal CarcinomaBreast Cancer

Breast cancer treatment changed after severe colitis

Patient Info: Anonymized, Female, 50s | Stage II

Biomarkers: HER2-positive, ER-negative, PR-negative

In April 2025, follow-up evaluation showed no evidence of breast cancer recurrence.

PubMed Central
OutcomeCancer-Free / NED
Alison, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HR-Positive Breast Cancer: Alison's Survivor Story

Patient Info: Alison, Female, Under 40 | Stage IV

Biomarkers: ER-positive; PR-positive; HER2-positive

Metastatic Site: Cervical/neck lymph nodes

Alison reported complete remission since August 2017 while continuing intermittent maintenance chemotherapy, most recently 1 month of treatment followed by 2 months off.

The Patient Story
OutcomeLiving With Cancer / Remission
Stefanie, who was diagnosed with Stage III Invasive Ductal CarcinomaBreast Cancer

Stage III HR-Positive Invasive Ductal Carcinoma: Stefanie's Survivor Story

Patient Info: Stefanie, Female | Stage III

Biomarkers: ER-positive, PR-positive and HER2-positive

Stefanie completed chemotherapy, breast-conserving surgery, prolonged Herceptin and 30 radiation treatments, then moved into survivorship while still adjusting to the lasting effects of treatment.

The Patient Story
OutcomeTreatment Completed / Survivorship
Shari, who was diagnosed with Stage IV Invasive Ductal CarcinomaBreast Cancer

Stage IV HR-Positive Invasive Ductal Carcinoma: Shari's Patient Story

Patient Info: Shari S., Female | Stage IV

Biomarkers: ER-positive, PR-positive and HER2-positive; no inherited cancer mutation was identified

Metastatic Site: Brain; other initial metastatic sites were not named

Systemic imaging after chemotherapy showed no active disease, but brain metastases later required stereotactic radiation. Shari remained stage 4, continued Herceptin every 3 weeks and underwent brain MRI every 3–4 months.

The Patient Story
OutcomeLiving With Cancer / Ongoing Therapy
Doreen, who was diagnosed with Stage II Invasive Ductal CarcinomaBreast Cancer

Stage II HR-Positive Invasive Ductal Carcinoma: Doreen's Patient Story

Patient Info: Doreen, Female | Stage II

Biomarkers: ER-positive; PR-positive; HER2-positive

As of June 2026, Doreen had completed TCHP chemotherapy with a complete response before surgery and had undergone lumpectomy and radiation for Stage IIA triple-positive breast cancer.

The Patient Story
OutcomeResponding Well
Rach, who was diagnosed with Stage II Breast CancerBreast Cancer

Stage II HR-Positive Breast Cancer: Rach's Patient Story

Patient Info: Rach D., Female, Under 40 | Stage II

Biomarkers: ER-positive; PR-positive; HER2-positive

As of June 2026, Rach described Stage II triple-positive breast cancer treated with fertility preservation, 6 rounds of neoadjuvant TCHP including Herceptin, Zoladex ovarian suppression, and double mastectomy with reconstruction.

The Patient Story
OutcomeCare Ongoing
Genoa, who was diagnosed with Stage III Breast CancerBreast Cancer

Stage III HER2-Positive Breast Cancer: Genoa's Survivor Story

Patient Info: Genoa M., Female | Stage III

Biomarkers: HER2-positive; ER-positive

As of June 2026, Genoa had completed treatment for Stage III HER2-positive, ER-positive breast cancer with neoadjuvant Taxotere/carboplatin/trastuzumab, lumpectomy, and radiation, and was focused on survivorship and rebuilding life after treatment.

The Patient Story
OutcomeSurvivorship / Completed Treatment
Renee, who was diagnosed with Stage IV Invasive Ductal CarcinomaBreast Cancer

Stage IV HER2-Positive Invasive Ductal Carcinoma: Renee's Patient Story

Patient Info: Renee N., Female | Stage IV

Biomarkers: HER2-positive

Metastatic Site: Brain

As of June 2026, Renee’s public story described living with metastatic HER2-positive breast cancer as a chronic illness, after brain radiation and while on Kadcyla every 3 weeks with stable scans reported in December 2019 and early March 2020.

The Patient Story
OutcomeLiving With Cancer
A patient, who was diagnosed with Stage IV Breast CancerBreast Cancer

Metastatic HER2-positive breast cancer complicated by severe low magnesium

Patient Info: Anonymized, Female, 50s | Stage IV

Biomarkers: HER2-positive

Metastatic Site: bone|lungs|liver|brain

She died during a hospitalization for advanced metastatic breast cancer and severe treatment-related hypomagnesemia, with her final care focused on comfort.

PubMed Central
OutcomeIn Memory