Entrapment Neuropathies in the Upper and Lower Limbs: Anatomy and MRI Features
Figure 3
A high-grade sarcoma in a 28-year-old patient has MRI appearances indicating a right suprascapular nerve entrapment by the tumor at the spinoglenoid notch. Isolated increased signal intensity in the infraspinatus muscle (arrows) on axial (a) T2 fat-saturated image, with mild enhancement on coronal (b) postcontrast T1 fat-saturated image. The heterogeneous enhancing tumor produces mass effect on the supraspinatus muscle (arrowheads), which has normal signal intensity.
(a)
(b)
Article of the Year Award: Outstanding research contributions of 2021, as selected by our Chief Editors. Read the winning articles.