Presentation
Second finger middle and distal phalanx pain, swelling, and deformity starting one month ago.
Patient Data
Abnormal bone marrow signal, appearing low on T1 images and high on proton density images, as well as cortical erosion (best appreciated on T1 images) of the distal middle and base of distal phalanges of the second finger. Together with a joint effusion of the DIP joint , findings are suggestive of septic arthritis and osteomyelitis.
Destruction of the lateral slips of the extensor tendon near the insertion site on the base of distal phalanx also is seen.
Marked subcutaneous edematous changes and swelling is noted along the second finger.
Case Discussion
Our patient had a history of trauma and penetrating injury to the second finger last month.
Progressive swelling and pain with swan neck deformity and limited finger mobility are the important clinical findings.
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