Keywords:
MR, Digital radiography, Ultrasound, Musculoskeletal system, Anatomy, Extremities, Diagnostic procedure, Pathology
Authors:
V. M. CRETEUR, A. Madani; Brussels/BE
DOI:
10.1594/essr2018/P-0014
Background
Shoulder pathology is not restricted to rotator cuff lesions.
Peripheral neuropathies are not uncommon and could be related to traumatic injury,
shoulder surgery,
infection or tumour,
but usually,
they result from entrapment,
a condition in which the nerve is stretched into an incompressible space.
Conventional radiography remains the first imaging step,
by evaluating glenohumeral and acromioclavicular joints,
cervical spine and by diagnosing shoulder fracture or dislocation,
cervical ribs,
or after shoulder surgery.
However,
different clinical circumstances may require specific imaging modality.
Although US may indicate the involved nerve and the site of its entrapment by determining the pattern and topography of the concerned muscles,
CT and MR are usually requested for complete.
Different clinical circumstances may require specific imaging modality for full evaluations.
How to choose adequatly? (Fig 1).The puzzle method illustrates the four steps methodology in the diagnostic process: they include antamoical keys,
denervation findings,
lesion's level determination and final diagnosis (Fig2)