Abstract
A 20-year-old man presented with pain and recurrent hemarthrosis in the right knee. Magnetic resonance imaging of the knee showed a lesion with homogeneous low signal intensity on T1-weighted images and a heterogeneous, low to high signal intensity on T2-weighted images. At arthroscopy, the mass was located between the posterior cruciate ligament and the posterior knee joint capsule. The tumor was excised through a posterior approach and histologically diagnosed as a nodular fasciitis. Intra-articular nodular fasciitis is a very rare clinicopathologic entity. The current case showed the unique clinical feature of recurrent hemarthrosis at initial presentation, which has not been previously reported.
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The authors express their thanks to Ms. Janina Tubby for her editorial assistance.
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Matsuzaki, T., Akisue, T., Kishimoto, K. et al. Intra-articular nodular fasciitis of the knee: a rare cause of recurrent hemarthrosis. Rheumatol Int 32, 1691–1694 (2012). https://doi.org/10.1007/s00296-011-1861-7
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DOI: https://doi.org/10.1007/s00296-011-1861-7