Focal inflammation ± necrosis ± atrophy of subcutaneous fat
Morel-Lavallée lesion: Shear injury leading to separation of subcutaneous tissue from underlying investing fascia creating potential space filled with blood, lymph, or other breakdown products
IMAGING
General Features
Radiographic Findings
MR Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
Depaoli R et al: Morel-Lavallée lesion of the knee in a soccer player. J Ultrasound. 18(1):87-9, 2015
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KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
TERMINOLOGY
Definitions
Focal inflammation ± necrosis ± atrophy of subcutaneous fat
Morel-Lavallée lesion: Shear injury leading to separation of subcutaneous tissue from underlying investing fascia creating potential space filled with blood, lymph, or other breakdown products
IMAGING
General Features
Radiographic Findings
MR Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
Depaoli R et al: Morel-Lavallée lesion of the knee in a soccer player. J Ultrasound. 18(1):87-9, 2015
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