Sternoclavicular Septic Arthritis Caused by Cutibacterium acnes in a Previously Healthy 13-Year-Old Male: A Case Report.

The management of septic arthritis in pediatric patients remains varied. Here, we present the only report of SC septic arthritis due to Cutibacterium acnes in a healthy pediatric patient. Given the similar clinical findings of pain and swelling to affected bones and joints, differentiating SC septic arthritis from other conditions within the clinical spectrum of chronic nonbacterial osteomyelitis remains challenging. Clinicians should maintain a high index of suspicion when patients present with pain and swelling over the SC joint.