PMC4772622_01
Increased muscle belly of the thenar and hypothenar regions without an ulnar deviation of the fingers (right hand).
crn-0008-0034-g01.jpg
PMC4772622_01_crn-0008-0034-g01.jpg
F1
In particular, both abductor pollicis muscles, the dorsal intrinsic hand muscles, and the abductor digiti quinti showed an increased muscle belly volume (fig. 1).
T1-weighted MRI, showing diffuse enlargement of the muscles of the right forearm.
crn-0008-0034-g02.jpg
PMC4772622_01_crn-0008-0034-g02.jpg
F2
T2-weighted MRI showed diffuse enlargement of the muscle mass, in particular of both abductor pollicis muscles, the intrinsic muscles, the abductor digiti quinti, and the right forearm flexor compartment (fig. 2, fig. 3).