Age: 54.0
Sex: F
Vaccine: COVID19
Symptoms: Pain in extremity, Peripheral swelling, Synovial cyst, Synovial rupture
Clinical narrative: Developed Baker's cyst in left knee; Baker's cyst leaking fluid; Leg swelling; Sharp pains in left knee and calf; Sharp pains in left knee and calf; Knee clicking; Could not walk normally or put pressure on left leg; MRI also showed evidence of arthritis behind knee which there was no prior history or issues; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 54 year-old female patient (not pregnant) received bnt162b2 (BNT162B2), administered in arm left, administration date 30Mar2021 (Lot number: ER8732) at the age of 54 years as dose 1, single and administered in arm left, administration date 20Apr2021 (Lot number: EW0170) as dose 2, single for covid-19 immunisation. Relevant medical history included: "GERD" (unspecified if ongoing). Concomitant medication(s) included: ESOMEPRAZOLE. The following information was reported: SYNOVIAL CYST (non-serious) with onset Apr2021, outcome "not recovered", described as "Developed Baker's cyst in left knee"; SYNOVIAL RUPTURE (non-serious) with onset Apr2021, outcome "not recovered", described as "Baker's cyst leaking fluid"; PERIPHERAL SWELLING (non-serious) with onset Apr2021, outcome "not recovered", described as "Leg swelling"; ARTHRALGIA (non-serious), PAIN IN EXTREMITY (non-serious) all with onset Apr2021, outcome "not recovered" and all described as "Sharp pains in left knee and calf"; JOINT NOISE (non-serious) with onset Apr2021, outcome "not recovered", described as "Knee clicking"; GAIT DISTURBANCE (non-serious) with onset Apr2021, outcome "not recovered", described as "Could not walk normally or put pressure on left leg"; ARTHRITIS (non-serious) with onset Apr2021, outcome "not recovered", described as "MRI also showed evidence of arthritis behind knee which there was no prior history or issues". The events "developed baker's cyst in left knee", "baker's cyst leaking fluid", "leg swelling", "sharp pains in left knee and calf", "sharp pains in left knee and calf", "knee clicking", "could not walk normally or put pressure on left leg" and "mri also showed evidence of arthritis behind knee which there was no prior history or issues" were evaluated at the physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of synovial cyst, synovial rupture, peripheral swelling, arthralgia, pain in extremity, joint noise, gait disturbance, arthritis.  Additional Information: The patient had no known allergies. The patient did not receive any other vaccines within four weeks prior to the COVID vaccine. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient had not been tested for COVID-19. Treatment taken as as a result of synovial cyst, synovial rupture, peripheral swelling, arthralgia, pain in extremity, joint noise, gait disturbance and arthritis included aspiration of Baker's cyst, Cortisone, Orthovisc.  No follow-up attempts are possible. No further information is expected.