just recently, little over a week ago, it was discovered that she had breast cancer and then it had metastasized; bone cancer and had stage 4; patient received BNT162B2 via subcutaneous route; This is a spontaneous report received from a contactable reporter (Consumer or other non HCP). The reporter is the patient.  A 68-year-old female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 06Oct2022 as dose 3 (booster), single (Batch/Lot number: unknown) at the age of 68 years subcutaneous, in arm for covid-19 immunisation. The patient's relevant medical history included: "diabetes" (unspecified if ongoing); "pain" (unspecified if ongoing); "had been through cancer before" (unspecified if ongoing); "had to have her uterus removed" (unspecified if ongoing), notes: and then a tumor removed 6 months later, which was malignant and then went on very strong chemo drugs; "a tumor removed" (unspecified if ongoing), notes: and then a tumor removed 6 months later, which was malignant and then went on very strong chemo drugs; "went on very strong chemo drugs" (unspecified if ongoing), notes: and then a tumor removed 6 months later, which was malignant and then went on very strong chemo drugs; "had stents in her heart" (unspecified if ongoing). Concomitant medications included: METFORMIN; ATORVASTATIN; LOVASTATIN; ZETIA; METOPROLOL; POTASSIUM CHLORIDE; CLOPIDOGREL taken for anticoagulant therapy; BABY ASPIRIN. The patient was also taking her diabetes medications. Vaccination history included: BNT162b2 (DOSE 1, SINGLE, Lot number: EN625 (it could be 6205)), administration date: 20Mar2021, when the patient was 66-year-old, for Covid-19 Immunization; BNT162b2 (DOSE 2, SINGLE, Batch/Lot number: unknown), administration date: 23Apr2021, when the patient was 66-year-old, for Covid-19 Immunization. The following information was reported: INCORRECT ROUTE OF PRODUCT ADMINISTRATION (non-serious) with onset 06Oct2022, outcome "unknown", described as "patient received BNT162B2 via subcutaneous route"; BREAST CANCER METASTATIC (medically significant) with onset Aug2023, outcome "not recovered", described as "just recently, little over a week ago, it was discovered that she had breast cancer and then it had metastasized; bone cancer and had stage 4". The patient underwent the following laboratory tests and procedures: Biopsy: (Aug2023) breast cancer, notes: within the past 2 weeks; (Aug2023) that's when they found it was malignant, notes: right breast; Computerised tomogram: (Aug2023) unknown results, notes: that wasn't very vivid so; Magnetic resonance imaging: (Aug2023) unknown results, notes: within the past 2 weeks; Mammogram: (unspecified date) unknown results; Positron emission tomogram: (Aug2023) breast cancer; Scan: (Aug2023) unknown results, notes: within the past 2 weeks; X-ray: (Aug2023) unknown results, notes: within the past 2 weeks. Therapeutic measures were taken as a result of breast cancer metastatic. Clinical course: The patient was just trying to find out, she was told and was just getting into this right now. She was just recently, little over a week prior reporting, it was discovered that she had breast cancer and then it had metastasized and she had to go through radiation first and then she would be going on chemo drugs to; the radiation was to help knock out the bone cancer and she had stage 4, but as far as the breast cancer, it was the same stage, but they were not worried about it until she could get rid of the bone cancer or shrink some of it, because it was right on her spine. Her doctor had left a message for her and the patient called to find out about it; she got a message from her pharmacy and they said about the copay for the drug, but she didn't have that kind of money. So she was researching and found this copay savings account and wanted to know about a little something about it. The patient had been through cancer before; she had to have her uterus removed and then a tumor removed 6 months later, which was malignant and then she went on very strong chemo drugs (unspecified medications) with being injected. She went on "Plantan" (unspecified medications) and something else (unspecified medications), one of them was "Plantan" 900 units and the other drug was 700; she didn't remember the name of it, but it was in her records. She was lucky to remember who she was now and she was looking to apply for the medication "Ibrance," a copay for Ibrance, a zero copay if she could get it. The patient further reported that she had to use Pfizer for her COVID Vaccination, she swore by Pfizer, and she only got COVID once and it lasted 5 days and she was over. The patient confirmed that she got the COVID vaccine first and then she was exposed to it probably in public, she didn't know, but she got it and it was a very light case of COVID. The patient was informed about the Pfizer Oncology Together, which she thought to be good, because she couldn't and was not going to order it (Ibrance) and she was going to demand from her doctor; if that didn't work then she was not going to even take Ibrance. That was definitely a no, she couldn't afford it. The patient advised to just leave a message if she was not there as she was going to be in and out, because she would start radiation tomorrow. She would have treatment tomorrow and would have treatment again on Friday and then on Tuesday. The patient had a separate oncologist for radiation. The patient clarified that this was her first prescription and before she never had Ibrance. The vaccine was administered at a clinic, it was done at a mall that was put together by volunteers. The patient also reported that she had been through scans, she had been through an MRI, she had been through X-rays, and she had been through biopsies; she thought within the past 2 weeks, all of that and she had a PET scan. When they found that she had breast cancer, they put her through the works. First of all, she had a mammogram, which gave her the point where they had to do biopsies on her right breast and that's when they found it was malignant. Then they send her through another CAT scan to see if they could see her big. That wasn't very vivid, so then they sent her through a PET scan, to find that. When asked about other medical conditions, the patient stated she was in pain because of the bone cancer. For the other medications, there was a lot; she was taking eight pills a day. For the chemo drug, the patient stated that it was called "Plantan," but she did not have them unless they were in her medical records, because that was a chemotherapy she was doing in the hospital. The patient also mentioned Nitroglycerin that she also have to take if needed, it's not very often. She had never taken it in her life. She had stents in her heart, so she had to have Nitroglycerin; it was like .4 milligrams; if she started to have a chest-pain. Since she has had those stents put in, she had never once and never once had felt, but she never had to taken them.  The information on the batch/lot number for BNT162b2, BNT162b2 omi ba.4-5 has been requested and will be submitted if and when received.