Reason: Assess for tendon/ligamentous injury to R long finger History: Long finger PIP flexion deficit and block to ROM; radial soft tissue mass -- does this represent torn tendon? There is poorly defined edema-type signal within the subcutaneous tissues radial to the PIP joint of the middle finger, but we see no well-defined mass. LIGAMENTS: Adjacent to the area of edema-type signal, there is minimal hyperintensity of the radial collateral ligament, which could conceivably represent a mild sprain but this is equivocal. The ulnar collateral ligament appears intact. The volar plate appears normal. TENDONS Although the extensor tendon is difficult to resolve dorsal to the middle phalanx, we see no findings to suggest extensor tendon injury. The flexor tendon apparatus appears normal. We see no specific findings to suggest pulley dysfunction.BONES: There is no evidence of fracture. Bone marrow signal intensity is normal.
Mild edema within the subcutaneous tissues lateral to the PIP joint of the finger is nonspecific. While there may be a sprain of the radial collateral ligament, this is equivocal and we see no tendon injury to account for the patient's flexion deficit.