Age: 73.0
Sex: F
Vaccine: COVID19
Symptoms: Breast cellulitis, Headache, Illness, Lymphadenopathy
Clinical narrative: breast inflame, left side affected by the cancer also the side that got inflame, immediately in a couple of days, red and inflame was infected; Got sick; headache; reaction of the Moderna on lymph node; This spontaneous case was reported by a consumer and describes the occurrence of BREAST CELLULITIS (breast inflame, left side affected by the cancer also the side that got inflame, immediately in a couple of days, red and inflame was infected) in a 73-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 031L20A, 012A21A and 053E21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Breast cancer (diagnosed in May) in May 2021, Mastectomy (got the surgery "lateral mastectomy" on June) in June 2021, Breast prosthesis removal and Mastectomy.   On 08-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 08-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 21-Aug-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On an unknown date, the patient experienced BREAST CELLULITIS (breast inflame, left side affected by the cancer also the side that got inflame, immediately in a couple of days, red and inflame was infected) (seriousness criterion medically significant), ILLNESS (Got sick), HEADACHE (headache) and LYMPHADENOPATHY (reaction of the Moderna on lymph node). At the time of the report, BREAST CELLULITIS (breast inflame, left side affected by the cancer also the side that got inflame, immediately in a couple of days, red and inflame was infected), ILLNESS (Got sick), HEADACHE (headache) and LYMPHADENOPATHY (reaction of the Moderna on lymph node) outcome was unknown.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   patient got the surgery "lateral mastectomy" on June  Company Comment: This case concerns a 73-year-old, female patient with a history of breast cancer diagnosed recently and mastectomy, who experienced the unexpected serious event of breast cellulitis. The event occurred at an unknown day after the third dose of Spikevax. The rechallenge was not applicable as the events happened after the third dose. The medical history of breast cancer diagnosed recently, and mastectomy remain a confounder. The benefit-risk relationship of Spikevax is not affected by this report.   This case was linked to MOD-2021-344360 (Patient Link).; Sender's Comments: This case concerns a 73-year-old, female patient with a history of breast cancer diagnosed recently and mastectomy, who experienced the unexpected serious event of breast cellulitis. The event occurred at an unknown day after the third dose of Spikevax. The rechallenge was not applicable as the events happened after the third dose. The medical history of breast cancer diagnosed recently, and mastectomy remain a confounder. The benefit-risk relationship of Spikevax is not affected by this report.