Achilles tendon xanthomas are painless soft tissue masses occurring most commonly at the distal one-third of the tendon, usually bilaterally and symmetrically.
It is characterised by localised accumulation of lipid laden macrophages, inflammatory cells and giant cells secondary to cholesterol deposition in tissue.
- soft tissue densities in the Achilles tendon
- AP thickness of the tendon >7 mm in males and >6 mm in females
- loss of normal tendon appearance with multiple hypoechoic foci within the tendon
- thickened AP diameter
- hyperintense on T1 and T2 weighted images
- loss of normal concavity of anterior tendon
- convexity of anterior aspect of tendon
- speckled appearance of tendon
- focal thickening of tendon
- tophaceous gout
- chronic tendon degeneration
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- 2. Schweitzer ME, Karasick D. MR imaging of disorders of the Achilles tendon. AJR Am J Roentgenol. 2000;175 (3): 613-25. doi:10.2214/ajr.175.3.1750613 - Pubmed citation
- 3. May DA et-al. Musculoskeletal imaging. Mosby. ISBN:0323011896. Read it at Google Books - Find it at Amazon