PMC4899931_01
A: Coronal STIR (TR=4290 ms, TE=38, TI=120) image demonstrates a fluid gap at the expected location of the clavicular insertion of the rhomboid ligament and the adjacent, torn, free edge of the ligament (red arrow). Note the surrounding, reactive soft tissue and avulsive, clavicular bone-marrow edema. Sternoclavicular joints are normal. B: Axial, T2-weighted, fat-saturated (TR=4870 ms, TE=69 ms) image demonstrates fluid in the expected location of the rhomboid ligament and the torn, free edge of the ligament (red arrow). Note the normal contralateral side, demonstrating the low-signal tendon enthesis (white arrow). C: Sagittal, T2-weighted, fat-saturated (TR=4950 ms, TE=60 ms) image demonstrates a complete tear of the rhomboid ligament from the undersurface of the medial clavicle (red arrow). Clavicular bone marrow and surrounding, soft-tissue edema are also present. D: Sagittal, T2-weighted, fat-saturated (TR=4950 ms, TE=60 ms) image of the contralateral side shows a normal, low-signal, rhomboid ligament insertion (white arrow), without associated soft-tissue and bone-marrow edema.
gr1.jpg
PMC4899931_01_gr1.jpg
fig1
SC joints (AP, bilateral obliques) obtained four weeks following the injury were negative (not shown). Selected images from an MRI of the SC joints obtained seven days after injury are shown in Fig. 1, A-D.