on his right arm, on just the inside where it goes into the arm pit, he has some lumps now that he didn't notice before; pain is not only around the nipple area, where it started, but it goes almost completely across his right breast into his arm pit and into his right arm; lot of pain and swelling in my right breast, it goes all the way into my armpit it has reached the point now where it hurt just the to wear a T-shirt; swelling in my right breast, it goes all the way into my armpit it; lot of pain and swelling in my right breast, it goes all the way into my armpit it has reached the point now where it hurt just the to wear a T-shirt; lot of pain and swelling in my right breast, it goes all the way into my armpit it has reached the point now where it hurt just the to wear a T-shirt; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient. Other Case identifier(s): US-PFIZER INC-202101595834.  A 64 year-old male patient received bnt162b2 (BNT162B2), administered in arm right, administration date 09Apr2021 09:20 (Lot number: EP7534) at the age of 63 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Arthritis" (unspecified if ongoing). There were no concomitant medications. Vaccination history included: Bnt162b2 (DOSE 1, SINGLE, Lot#: EN6200, Anatomical site: Right upper arm), administration date: 19Mar2021, when the patient was 63 years old, for COVID-19 immunization, reaction(s): "first shot he didn't have problems". The following information was reported: BREAST PAIN (non-serious), AXILLARY PAIN (non-serious), BREAST SWELLING (non-serious) all with onset 2021, outcome "not recovered" and all described as "lot of pain and swelling in my right breast, it goes all the way into my armpit it has reached the point now where it hurt just the to wear a T-shirt"; SWELLING (non-serious) with onset 2021, outcome "not recovered", described as "swelling in my right breast, it goes all the way into my armpit it"; LYMPHADENOPATHY (non-serious) with onset Nov2021, outcome "not recovered", described as "on his right arm, on just the inside where it goes into the arm pit, he has some lumps now that he didn't notice before"; PAIN IN EXTREMITY (non-serious) with onset 2021, outcome "not recovered", described as "pain is not only around the nipple area, where it started, but it goes almost completely across his right breast into his arm pit and into his right arm". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of breast pain, swelling, axillary pain, breast swelling, pain in extremity.  Additional information: The patient had the COVID-19 Pfizer injections, both of them, and last one was in April that was when he had a lot of pain and swelling in his right breast, and now the pain was not only around the nipple area, where it started, but it went almost completely across his right breast, it went all the way into his armpit and into his right arm and he had swelling, it had reached the point now where it hurt just to wear a T-shirt. He confirmed that this occurred after the 2nd dose of the Pfizer COVID vaccine. He stated that he seemed to have more pain and more swelling. He said that he was also noticing on his right arm, on just the inside where it goes into the arm pit, that he had some lumps now that he didn't notice before. He stated that he noticed it about 2 to 3 days ago. They might have been there maybe longer than that but he just noticed them 2 to 3 days ago when they had started being more painful in that area. Prior vaccination (4 weeks) was none.  Follow-up attempts are completed. No further information is expected.