IVIM MRI: A Window to the Pathophysiology Underlying Cerebral Small Vessel Disease Jacobus F. A. Jansen, Sau May Wong, and Walter H. Backes Department of Radiology, Maastricht University Medical Center,…
Nerve Sheath Tumors KEY FACTS Terminology • Tumor arising from nerve; histologically classified as either schwannoma or neurofibroma • 3 types of neurofibroma: Localized, diffuse, and plexiform Imaging • Any peripheral nerve can…
Ganglion Cyst KEY FACTS Imaging • Fluid-filled mass with stalk extending toward joint • Ovoid or irregular configuration with stalk connecting to joint of origin Elongated neck allows cyst to surface at…
Inflammatory Arthritis KEY FACTS Terminology • Systemic autoimmune inflammatory disorders of synovium with secondary involvement of articular surface and bone • Spondyloarthropathy associated with enthesitis Imaging • Thickened hyperemic synovium • Any synovial-lined joint…
Joint Injection: Upper Limb KEY FACTS Procedure • Glenohumeral joint injection Anterior (rotator interval) or posterior approach – Anterior approach preferable Less painful & more comfortable position for patient Needle tip positioned…
Bone Infection KEY FACTS Imaging • Periosteal thickening and hyperemia with juxtacortical edema • US can depict outer cortical, periosteal, and extraosseous changes Periosteal thickening ± juxtacortical soft tissue edema and hyperemia…
Rotator Cuff/Biceps Tendinosis KEY FACTS Terminology • Collagenous degeneration of rotator cuff ± biceps tendons with proteoglycan deposition Imaging • Supraspinatus > subscapularis, biceps and infraspinatus • Subclinical tendinosis very common and usually…
Muscle Injury KEY FACTS Terminology • Contusion : Direct blunt compressive trauma to muscle without definable tear • Tear : Discontinuity of muscle fibers typically at myofascial or myotendinous junction • Hernia :…
Baker Cyst KEY FACTS Imaging • Fluid-filled sac with neck arising from interspace between medial gastrocnemius muscle & semimembranosus tendon Cyst must have neck emerging from gastrocnemius muscle and semimembranosus tendon…
