There is a 26*30*47 mm soft tissue mass with heterogeneous T1/T2 signal located at the volar radial wrist and the first extensor compartment (ABL, EBP) and flexor carpi radialis (FCR) tendons.
The mass partially encircles the scaphoid, extending dorsally deep to the first extensor compartment. There is ulnar volar extension between the FCR and flexor pollicis longus tendons at the distal margin of the carpal tunnel.
There is intra-osseous extension of the mass into the volar tubercle of the radius.