Vaccine-Related Shoulder Injury (SIRVA): Imaging and Clinical Presentation (radsource.us)

• SIRVA occurs after intramuscular deltoid injection from needle misplacement
• MRI findings include subacromial bursitis and rotator cuff tendinopathy
• Early diagnosis and physiotherapy are key

"This article covers the clinical and imaging features of Shoulder Injury Related to Vaccine Administration (SIRVA). SIRVA occurs after intramuscular injection in the deltoid when the needle is misplaced, leading to inflammation or damage to shoulder structures. MRI commonly shows bursitis, tendinopathy, or joint effusion. Physiotherapists should consider SIRVA as a differential diagnosis for post-vaccination shoulder pain and prompt referral for imaging and management."