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MR imaging features of presumed retroclavicular and periscapular intermuscular vascular plexi - An observational,
Shivani Ahlawat1, Filippo Del Grande2, Laura M Fayad3
1The Russell H. Morgan Department of Radiology & Radiological Science, The Johns Hopkins Medical Institutions, 600 North Wolfe Street, Baltimore, MD 21287, United States of America.
Objective:
To describe MR imaging features of presumed vascular plexi in the periscapular (PSC) and retroclavicular (RC) locations.
Materials/Methods:
443 consecutive MR studies performed as "brachial plexus" protocol (axialT1-W and sagittal STIR) were reviewed for presence, size and characteristics of PSC and RC plexi.
Results:
Presumed PSC and RC vascular plexi were present in 10%. Both plexi more commonly occurred on the left side. Percutaneous biopsy (n = 1) yielded no vascular neoplasm.
Conclusion:
RC and PSC vascular plexi are commonly encountered on routine brachial plexus MR imaging and may represent variant vascular networks, as they are frequently found on the contralateral asymptomatic side.
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