(Fig 4-D.02) Superficial Infrapatellar Bursitis with Intrabursal Hemorrhage

https://youtu.be/VpLJdQpLeOs?si=M3jkaHGSnHpfxeG2

https://youtu.be/YiEAI7pISIU

 

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📌 Hemorrhagic Superficial Infrapatellar Bursitis

✅  Case Study: Imaging Findings

• Complex fluid collections anterior and slightly superior to tibial tuberosity
• Complex fluid collections with fluid-fluid levels
• High-signal-intensity layers related to methemoglobin in hematoma
• T1WI shows linear high signal intensity in the peripheral portion

 

✅  Understanding Intrabursal Hemorrhage

• Causes complex fluid collections with variable signal intensity
• Common in superficial bursae after acute trauma
• More frequent in older, anticoagulated patients with preexisting bursitis

✅  Diagnostic Challenges

Difficulty distinguishing between: 

a) Hemorrhage confined to bursa 

b) Extrabursal hematoma 

c) Prepatellar Morel-Lavallée lesion

 

Initial management approach is identical for all these conditions

References

RadioGraphics 2018; 38:2069–2101.

"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery"

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#KneeBursitis, #HemorrhagicBursitis, #MRIFindings, #ComplexFluidCollections, #PrepatellaBursa, #SportsInjury, #OrthopedicImaging, #MusculoskeletalRadiology, #TraumaImaging, #KneePathology