inflammation and big lump of the left arm (where had covid vaccine); inflammation and big lump of the left arm (where had covid vaccine); this is a spontaneous report received from a contactable reporter(s) (consumer or other non hcp) from the regulatory authority. a 35 year-old female patient (not pregnant) received bnt162b2 (bnt162b2), administered in arm left (batch/lot number: unknown) as dose 2, single for covid-19 immunisation. the patient's relevant medical history and concomitant medications were not reported. patient has not had symptoms associated with covid-19. patient is not currently breastfeeding. patient is not enrolled in clinical trial. vaccination history included: bnt162b2 (dose 1), for covid-19 immunisation. the following information was reported: vaccination site inflammation (medically significant), vaccination site mass (medically significant), outcome "unknown" and all described as "inflammation and big lump of the left arm (where had covid vaccine)". the patient underwent the following laboratory tests and procedures: blood test: no abnormality was detected; red blood cell sedimentation rate: 20; ultrasound scan: no abnormality was detected. the patient had the inflammation and big lump of the left arm (where she had an covid vaccine) 2 months after the 2nd dose of vaccine. the inflammation lasted for 3-4 days and recurred every month. she had blood tests and usg scan, apart from esr of 20, no abnormality was detected. no follow-up attempts are possible; information about lot/batch number cannot be obtained. no further information is expected. ; sender's comments: linked report(s) : gb-pfizer inc-202200299058 same patient/ product, different dose and similar event

test name: blood tests; result unstructured data: test result:no abnormality was detected; test name: esr; result unstructured data: test result:20; test name: usg scan; result unstructured data: test result:no abnormality was detected

na

na