Fig. 4

A–E images: A 34-year-old female patient complained of right hand pain, tingling, numbness, and weakness of thumb abduction and swelling of the dorsal aspect of the wrist. By nerve conduction studies, the case was diagnosed as moderate carpal tunnel syndrome. A Coronal T2-weighted MR image, and B Coronal PD MR image show widening of scapholunate distance (green arrow) with suspected disrupted scapholunate ligament and altered signal intensity of distal segment of scaphoid bone with irregular contour with high signal in PD image denoting bone marrow edema (red arrow), C Axial T2-weighted MR image shows numerous separated bone fragments at intercarpal joints (yellow arrows), D ADC map shows low mean ADC value of MN at DRUJ (0.99 × 10^–3 mm²/s), and E ADC map shows increase of mean ADC value at pisiform (1.3 × 10^–3 mm²/s). Overall MRI picture is consistent with scapholunate diastasis with numerous separated bone fragments, osteoarthiritic changes of inter carpal joints. DWI features are consistent with carpal tunnel syndrome