Key sonographic signs of iliopsoas bursitis include a visible anechoic effusion, internal debris, and septations. Magnetic Resonance Imaging (MRI) Features For a comprehensive evaluation, particularly when surgery is contemplated or infection is suspected, MRI is the gold standard.
Iliopsoas Bursitis Radiology Imaging Indications and Patient Presentation
MRI excels in delineating the relationship of the bursitis to the tendon and joint, identifying concomitant pathologies like labral tears or cartilage defects. On T1-weighted sequences, a bursa containing fluid typically appears with low signal intensity.
The dynamic assessment of the bursa during hip movement can further corroborate the diagnosis. Tendinosis or partial-thickness tears of the iliopsoas tendon can mimic bursal effusion but are differentiated by careful analysis of the tendon substance and signal characteristics.
Iliopsoas Bursitis Radiology Imaging Indications and Patient Presentation
Key considerations include a ganglion cyst, which often has a more lobulated appearance and arises from the joint capsule, or an abscess, which may demonstrate peripheral enhancement and surrounding cellulitis. Operator-dependent technique may miss deep lesions.
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