47F referred for evaluation of soft tissue mass

The referrer didn't even provide history of Tibialis Anterior tear or repair, though we see suture artifact along the course of the ATT and anchor implantation of the distal tendon into the medial cuneiform.  I was rather convinced the mass looked like a muscle hernia at the distal MT junction when I reported it Friday---but on review, I'm not certain.  What do you think?  Also, outside pre-op MRI (shared by Erin Alaia, MD) shows an ATT split at the level of the distal tibia with marrow edema in the midfoot, but the distal tendon looks intact---I cannot imagine why they re-implanted the ATT insertion in the medial cuneiform.