12 year old boy presented with swollen painful shoulder, fever + could not abduct arm.
Enticed with obvious shoulder swelling, much of my effort was focused on shoulder-all I could see was fluid in gleno-humeral joint, in SASD bursa and between brachialis and humerus…I could not explain the findings.
Curiously, I continued my adventure to wherever I could find an explanation, and I landed on echogenic and swollen muscle in postero-medial aspect of upper (think it was long head triceps)-with an echogenic turbid collection devoid of color signals? Abscess.
What was I dealing with here? How do these findings fit together? What could be the differentials?