Adhesive Capsulitis - MSK Radiology
Imaging Findings:
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Description

Adhesive Capsulitis - MSK Radiology
Imaging Findings:
 • Thickened coracohumeral ligament (> 4 mm)
 • Near circumferential T2-hyperintense pericapsular fluid-like signal consistent with capsular inflammation. Early stage finding.
 • Thickened axillary pouch/inferior joint capsule (>3-4 mm thickness) with intrinsic edema-like signal suggesting inflammation.
 • This is the region of the "subcoracoid triangle" which will have loss of fat signal with fibrotic T1-hypointense and T2-hyperintense signal. Triangle of tissue between the coracohumeral ligament, coracoid, and joint capsule.
Case description:
 • Adhesive capsulitis "frozen shoulder"
 • Fibrosis occurs in the rotator interval with thickened and edematous joint capsule of the axillary recess.
 • Fluid-like signal around and within the inferior joint capsule AND obliteration of rotator interval fat - THE MOST COMMON findings.
 • Decreased range of motion from fibrotic capsule.
 • Arthrogram: small axillary recess volume and limited contrast (<8-10 mL) in joint before extravasation.
Differential diagnosis:
 • Capsular sprain: can look similar on MR with thickened and fluid-like signal in the inferior joint capsule. Results from trauma and usually rotator interval will be normal. Always in differential ifno history.

Dr. Donald von Borstel @DrvonBorstel

#Adhesive #Capsulitis #frozen #shoulder #clinical #mri #clinical #Radiology #diagnosis #msk 
Contributed by

Dr. Gerald Diaz
@GeraldMD
Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief 🇵🇭 🇺🇸 - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG:  https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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