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Diagnostic ultrasound ( PDFDrive )

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FIG. 55.13 Normal and Dislocated Shoulder. (A) Normal shoulder posterior axial sonogram. The humeral head (h) projects only minimally

beyond the margin of the scapula. The glenoid (g) is well formed, and the labrum (arrow) is small. s, Scapula. (B) Normal shoulder. Axial T2-weighted

magnetic resonance image shows the ield of view in the plane of sonographic interrogation (dashed lines). (C) and (D) Posterior dislocated

shoulder. (C) Posterior axial ultrasound. Note the posterior protrusion of the humeral head (h), the dysplastic glenoid (g), and the echogenic labrum

(arrow). s, Scapula. (D) Dislocated humeral head with glenoid dysplasia. Axial T2-weighted magnetic resonance image.

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FIG. 55.14 Septic Arthritis. Coronal images of the shoulder. (A) Echogenic luid within the shoulder joint (arrowheads) superior to the humeral

head (H). c, Cartilage of humeral head; L, lateral; S, superior. (B) Normal side for comparison.

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