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Ultrasound
Diagnosis
Musculoskeletal
Neurovascular Abnormalities
Nerve Injury
Nerve Injury
James F. Griffith, MD, MRCP, FRCR
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KEY FACTS
Terminology
Imaging
Diagnostic Checklist
TERMINOLOGY
Synonyms
Neurapraxia: Saturday-night palsy, honeymoon syndrome, crutch syndrome, wheelchair syndrome
Definitions
Neurapraxia = impaired nerve function due to conduction block
Praxis = function (Greek)
Axonotmesis = "axon cutting" → impaired nerve function due to tear of axon or axons ± sheath
Severity variable depending on number of axons torn
Neurotmesis = "nerve cutting" → loss of nerve function due to disruption of entire nerve
IMAGING
General Features
MR Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
Hollister AM et al: High frequency ultrasound evaluation of traumatic peripheral nerve injuries. Neurol Res. 34(1):98-103, 2012
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Diagnostic Checklist
TERMINOLOGY
Synonyms
Neurapraxia: Saturday-night palsy, honeymoon syndrome, crutch syndrome, wheelchair syndrome
Definitions
Neurapraxia = impaired nerve function due to conduction block
Praxis = function (Greek)
Axonotmesis = "axon cutting" → impaired nerve function due to tear of axon or axons ± sheath
Severity variable depending on number of axons torn
Neurotmesis = "nerve cutting" → loss of nerve function due to disruption of entire nerve
IMAGING
General Features
MR Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
Hollister AM et al: High frequency ultrasound evaluation of traumatic peripheral nerve injuries. Neurol Res. 34(1):98-103, 2012
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