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Median nerve hamartoma: MR imaging using chemical shift techniques
V Giuliano1, E K Outwater, D G Mitchell
1Department of Diagnostic Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107-5244, USA.
Magnetic Resonance Imaging
|January 1, 1997
Summary
Magnetic resonance imaging (MRI) reveals distinctive features of median nerve hamartomas, aiding diagnosis in patients with wrist masses and nerve issues. These tumors show specific fat and fibrous tissue patterns on MRI, improving diagnostic accuracy.
Area of Science:
- Radiology
- Neurology
- Pathology
Background:
- Median nerve hamartomas are rare benign tumors.
- Wrist masses and median neuropathy can present with similar symptoms, complicating diagnosis.
- Accurate imaging is crucial for differentiating these conditions.
Observation:
- Presents MRI findings in three patients with median nerve hamartoma.
- Patients exhibited palpable wrist masses and symptoms of median neuropathy.
- Utilized fat-suppressed T1-weighted and gadolinium-enhanced fat-suppressed T1-weighted MRI sequences.
Findings:
- Fat-suppressed T1-weighted MRI showed adipose tissue separating neural and fibrous bundles in two of three patients.
- This fat-tissue pattern created a distinctive tumor appearance on MRI.
- Gadolinium-enhanced fat-suppressed T1-weighted images revealed enhancing longitudinal fibrous bundles within the tumor.
Implications:
- MRI findings can help diagnose median nerve hamartoma.
- Distinctive imaging features improve diagnostic specificity for wrist masses.
- This study contributes to understanding the MRI characteristics of median nerve hamartomas.