case_images: PMC9532526_01
case_images: Ultrasound imaging of (A) left median nerve and (B) right median nerve (arrow). The sonographic findings showed a hypoechoic swelling of the right median nerve at the distal forearm level (4 cm above the distal wrist crease). At this level, the cross-sectional area (CSA) of the right median nerve was 0.19 cm2, and that of the left side was 0.09 cm2. (C) At the 1-month follow-up, the CSA of the right median nerve was 0.12 cm2.
case_images: fneur-13-959919-g0001.jpg
case_images: PMC9532526_01_fneur-13-959919-g0001.jpg
case_images: F1
case_images: The cross-sectional area (CSA) of the right median nerve at the lesion site was 0.19 cm2, while that of the left median nerve was 0.09 cm2 (Figure 1). On sonographic examination, the CSA of the right median nerve was 0.12 cm2, indicating improvement compared to the initial presentation (Figure 1).
case_images: Magnetic resonance imaging findings of the right median nerve (arrow) in the (A) T2-weighted axial view and (B) T2-weighted sagittal view. Focal thickening and signal change in the right median nerve is observed at the distal radius level.
case_images: fneur-13-959919-g0002.jpg
case_images: PMC9532526_01_fneur-13-959919-g0002.jpg
case_images: F2
case_images: Magnetic resonance imaging (MRI) of the right forearm revealed edema in the surrounding fat tissue and a focal defect in the epineurium of the right median nerve, at the distal radius level (Figure 2).