Ring finger fracture, concern for radial collateral ligament injury There is increased signal intensity within the radial collateral ligament at the proximal phalanx of the ring finger compatible with tearing which we suspect originates at the head of the proximal phalanx. There is mild edema within the head of the proximal phalanx as well. Mild thickening and increased signal intensity of the ulnar collateral ligament when compared to the other fingers may reflect a mild sprain; however, the small density seen on the prior radiographs along the dorsomedial aspect of the head of the proximal phalanx is not evident on this exam. There is focal signal abnormality within the volar aspect of the base of the middle phalanx which may represent the site of a small volar plate fracture suspected on radiographs although the fracture fragment itself is not well visualized on MRI. The flexor and extensor tendons of the ring finger are normal.
Findings compatible with tearing of the radial collateral ligament; other findings as above.