Fig. 19

Sonoanatomy and example of a pathology of the suprascapular nerve. A Short-axis view of the suprascapular nerve at the supraclavicular fossa identified as a small monofascicular structure originating from the superolateral aspect of the brachial plexus and running under the omohyoid muscle. B Short-axis view of the suprascapular nerve at the supraspinous fossa lying in the supraspinatus notch deep to the trapezius and supraspinatus muscles. B, C Short-axis view of the suprascapular nerve at the spinoglenoid notch deep to the infraspinatus muscle. D Short-axis view of the suprascapular nerve at the supraspinous fossa in a patient with suprascapular neuropathy showing marked nerve enlargement with a cross-sectional area of 41 mm²