swelling and pain extended to underneath upper arm to under arm pit and left side of chest/Armpit area is swollen and tender; Pain going down upper outside area of arm/swelling and pain extended to underneath upper arm to under arm pit and left side of chest; swelling in left arm/swelling and pain extended to underneath upper arm to under arm pit and left side of chest; armpit area is swollen and tender; swelling and pain extended to underneath upper arm to under arm pit and left side of chest/pain sometimes radiates to left chest breast area down left side of ribs; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 55 year-old female patient (not pregnant) received bnt162b2 (BNT162B2), administered in arm left, administration date 11Oct2021 12:45 (Lot number: EW0176) at the age of 56 years as dose 3 (booster dose), single for covid-19 immunisation. Relevant medical history included: "Psoriatic arthritis" (unspecified if ongoing), notes: other medical history: psoriatic arthritis; "Known allergies: yes" (unspecified if ongoing). Concomitant medication(s) included: IBUPROFEN. Vaccination history included: Bnt162b2 (Prev dose product=COVID 19, Prev dose brand=pfizer, Prev dose brand unknown=False, Prev dose lot number=EW0170, Prev dose lot unknown=False, Prev dose administration date=25Apr2021, Prev dose administration time=10:45AM, Prev dose dose number=2, Prev dose vaccine location=Leftarm), administration date: 25Apr2021, when the patient was 55 years old, for Covid-19 immunization; Bnt162b2 (Prev dose product=COVID 19, Prev dose brand=pfizer, Prev dose brand unknown=False, Prev dose lot number=ER8733, Prev dose lot unknown=False, Prev dose administration date=31Mar2021, Prev dose administration time=10:30AM, Prev dose dose number=1, Prev dose vaccine location=Leftarm), administration date: 31Mar2021, when the patient was 55 years old, for Covid-19 immunization. The following information was reported: SWELLING (non-serious) with onset 12Oct2021, outcome "unknown", described as "swelling and pain extended to underneath upper arm to under arm pit and left side of chest/Armpit area is swollen and tender"; PAIN IN EXTREMITY (non-serious) with onset 12Oct2021, outcome "unknown", described as "Pain going down upper outside area of arm/swelling and pain extended to underneath upper arm to under arm pit and left side of chest"; PERIPHERAL SWELLING (non-serious) with onset 12Oct2021, outcome "unknown", described as "swelling in left arm/swelling and pain extended to underneath upper arm to under arm pit and left side of chest"; AXILLARY PAIN (non-serious) with onset 12Oct2021, outcome "unknown", described as "armpit area is swollen and tender"; CHEST PAIN (non-serious) with onset 12Oct2021, outcome "unknown", described as "swelling and pain extended to underneath upper arm to under arm pit and left side of chest/pain sometimes radiates to left chest breast area down left side of ribs". Therapeutic measures were not taken as a result of swelling, pain in extremity, peripheral swelling, axillary pain, chest pain. Additional information: Patient did not receive any other vaccine with in four weeks. Patient was not diagnosed with covid-19, Prior to vaccination. Other medications in two weeks: ibuprofen as needed, birth control pills, biologic.  Follow-up attempts are completed. No further information is expected.