Stage ypT1aN0 triple-negative breast cancer with familial BRCA1 and OBSCN deletions

Patient Info: Anonymized, Female, Under 40

Biomarkers: Triple-negative breast cancer; HER2 1+/negative; Ki-67 20%+. Familial testing showed BRCA1 and OBSCN deletions.

She underwent modified radical mastectomy with sentinel lymph node dissection and continued postoperative follow-up, with the main clinical emphasis on familial BRCA1/OBSCN genetic susceptibility.

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Stage I luminal A invasive ductal breast cancer with post-treatment cognitive symptoms

Patient Info: Anonymized, Female, 70+ | Stage I

Biomarkers: ER 100% positive; PR 95% positive; HER2 score 0 / HER2-negative; Ki-67 10%; P63 negative

As of April 2026, the case focused on survivorship after Stage I luminal A breast cancer treatment, with cognitive complaints after chemotherapy and improved MoCA and depression scores after 12 sessions of tDCS; brain metastases had been ruled out.

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Stage II Breast Cancer: Jenna's Patient Story

Patient Info: Jenna, Female, Under 40 | Stage II

Biomarkers: Hormone receptor-positive; HER2-negative; BRCA inherited gene mutations negative

As of April 2026, Jenna had completed pregnancy-associated chemotherapy and double mastectomy for Stage II HR-positive, HER2-negative breast cancer with 1 involved lymph node, did not need radiation, and was on hormone therapy for 10 years.

Breast Cancer: Muriel's Patient Story

Patient Info: Muriel, Female

As of 16 April 2026, Muriel was in the antihormonal-therapy phase, living largely symptom-free after breast surgery and chemotherapy, and supporting other people with cancer as a peer counselor.

Stage IV Breast Cancer: Erica's Patient Story

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

Biomarkers: Hormone-positive; HER2-negative

Metastatic Site: Bone — ribs, sternum, spine, femur/right hip, shoulder…

Living with stable Stage IV hormone-positive, HER2-negative metastatic breast cancer involving multiple bones, currently managed with monthly hormone-suppressant injections and monitoring.

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Invasive Lobular Carcinoma: Liz's Survivor Story

Patient Info: Liz O’Riordan, Female, 40s

Technically cancer-free after 2 local recurrences, with no metastatic disease stated, while continuing lifelong monthly injection treatment to reduce the risk of metastatic disease and living with scanxiety.

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Triple-Negative Breast Cancer: Jes's Survivor Story

Patient Info: Jes, Female

Biomarkers: ER-negative; PR-negative; HER2-negative

No evidence of disease after chemotherapy/immunotherapy and bilateral mastectomy; no positive lymph nodes were found, chemotherapy cleared the cancer, and radiation was not needed, though she continued to experience long-term treatment effects.

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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.

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Hormone receptor-positive high-grade encapsulated papillary breast carcinoma with limited invasion

Patient Info: Anonymized, Female, 40s

Biomarkers: ER/PR-positive, HER2-negative breast cancer; Ki-67 high in papillary/high-grade invasive areas; sentinel lymph nodes negative.

After mastectomy, sentinel-node evaluation, S-1, and endocrine therapy, she remained disease-free and in good health under regular follow-up.

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Triple-Negative Breast Cancer: Marina's Survivor Story

Patient Info: Marina, Female, Under 40

Biomarkers: BRCA1 mutation; triple-negative breast cancer

Triple-negative breast cancer survivor with a BRCA1 mutation who completed treatment after an initial diagnosis and a second diagnosis at the 5-year mark; no formal stage or metastatic disease was stated in the available source text.

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Breast cancer treated separately from concurrent diffuse large B-cell lymphoma

Patient Info: Anonymized, Female, 50s

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

Follow-up after mastectomy showed no local recurrence of the breast cancer.

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Metastatic invasive lobular breast cancer with stomach, ovarian, peritoneal, rectal, and jejunal spread

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

Biomarkers: Primary tumor and gastric metastasis were ER/PR positive and HER2 negative; GATA3 supported breast origin in the metastasis.

Metastatic Site: stomach; ovaries; peritoneum; rectum; jejunum

During 2025, she remained under active oncologic management for metastatic invasive lobular breast cancer with gastrointestinal, ovarian, peritoneal, rectal, and jejunal involvement.

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ER-positive/HER2-positive breast cancer with rare paranasal sinus and skull metastasis

Patient Info: Anonymized, Female, 70+ | Stage IV

Biomarkers: Primary and paranasal sinus metastasis were ER positive, PR negative, HER2 positive; GATA3 supported breast origin in metastasis.

Metastatic Site: left frontal sinus; ethmoid air cells; posterior…

The paranasal sinus/skull metastasis did not respond to palliative radiotherapy; her condition deteriorated and she died 2 years after her initial presentation to the treating facility.

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Triple-Negative Breast Cancer: Jacqueline's Patient Story

Patient Info: Jacqueline Bennett, Female, Under 40

Biomarkers: Initial ER-negative, PR-negative, HER2-negative; later HER2-positive

Jacqueline completed treatment for initial Stage IA triple-negative breast cancer during pregnancy and later developed a HER2-positive, hormone receptor-negative breast cancer. After 3 of 6 current treatments, the tumor was no longer visible on ultrasound or MRI, with targeted therapy and double mastectomy still planned.

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Triple-negative breast cancer diagnosed during pregnancy: remission

Patient Info: Anonymized, Female, Under 40

Biomarkers: ER-negative; PR-negative; HER2-negative

The patient remains in remission 30 months after surgery. Immune-related brachial plexopathy after treatment improved after steroids, IVIG, and plasmapheresis, with electrophysiologic resolution and near-complete strength and sensory recovery.

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Invasive Lobular Carcinoma: Louise's Survivor Story

Patient Info: Louise Butcher, Female

As of February 2026, Louise Butcher was living after lobular breast cancer, raising awareness about going flat, body image, and running after bilateral mastectomy.

Non-metastatic metaplastic triple-negative breast cancer with residual disease after chemotherapy

Patient Info: Anonymized, Female, 40s

Biomarkers: Metaplastic triple-negative breast cancer; HER2 0

The patient had an initial partial response to neoadjuvant chemotherapy but then progressed before surgery. Modified radical mastectomy found substantial residual metaplastic carcinoma with 0/21 nodes involved, followed by adjuvant radiotherapy and metronomic capecitabine.

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Invasive lobular breast cancer with colonic metastases treated with colectomy and capecitabine

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

Biomarkers: Breast and colon metastatic samples were ER+ and HER2-; PR varied by sample

Metastatic Site: colon; perivisceral lymph nodes

After laparoscopic left colectomy and capecitabine for colonic metastases, follow-up showed no clinical or radiological evidence of recurrence or progression at 8 months postoperatively.

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

Patient Info: Janet Ayala, Female, Under 40 | Stage II

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

After complete pathologic response and completion of HER2-targeted infusions, Janet remained in survivorship-focused ongoing care with estrogen suppression and additional endocrine/targeted therapy planning to reduce recurrence risk.

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Stage III HER2-Positive Breast Cancer: Caroline's Patient Story

Patient Info: Caroline McNally, Female, Under 40 | Stage III

Biomarkers: Hormone-positive component reported; exact ER/PR/HER2 panel not stated

As of February 2026, Caroline was in active treatment for Stage III hormone-positive breast cancer, receiving Taxol after dose-dense AC and preparing for double mastectomy, likely radiation, and hormone therapy.

Stage IIIB triple-negative metaplastic breast cancer: urgent mastectomy and reconstruction after rapid progression on neoadjuvant therapy

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

Biomarkers: ER-negative; PR-negative; HER2-negative; nuclear grade 3

At 18-month follow-up, she was disease-free after urgent mastectomy, axillary dissection, flap/skin-graft reconstruction, resumed chemotherapy, and radiation for rapidly progressive triple-negative metaplastic breast cancer.

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Stage IIB breast cancer with severe radiation recall after abemaciclib

Patient Info: Anonymized, Female, 40s

Biomarkers: ER-positive; PR-positive; HER2 1+ / HER2-negative

The flap healed after abemaciclib was stopped and the tissue expander/patch were removed, but her long-term cancer-control and reconstruction outcomes were not yet reported.

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Stage 4 breast cancer: 4 years and counting

Patient Info: Anonymized, Female, 60s | Stage IV

Biomarkers: Initial tumor: hormone receptor-positive; HER2 1+. Metastatic recurrence: triple-negative breast cancer.

Metastatic Site: liver, bone, lung, supraclavicular lymph nodes,…

After response of choroidal metastases to eye radiation plus sacituzumab govitecan, disease progressed in February 2023 with cerebellar and pituitary brain lesions; she developed obstructive hydrocephalus, entered hospice in May 2023, and died in June 2023.

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Localized male small-cell neuroendocrine breast cancer with complete response

Patient Info: Anonymized, Male, 40s

Biomarkers: Synaptophysin-positive; weak cytokeratin-positive; HER2-negative; Ki-67 greater than 70%; genetic testing not performed

The tumor shrank substantially during neoadjuvant cisplatin/etoposide. Modified radical mastectomy then showed a complete pathologic response and 17 reactive axillary lymph nodes; the patient remained disease-free after 18 months of follow-up.

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