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Semin Musculoskelet Radiol 2009; 13(4): 353-370
DOI: 10.1055/s-0029-1242189
© Thieme Medical Publishers

Incidental Tumor and Tumor-Like Lesions Around the Knee

Naveen Subhas1 , Kimmie L. Bui1 , Murali Sundaram1 , Hakan Ilaslan1 , Michael P. Recht2
  • 1Department of Radiology, Cleveland Clinic, Cleveland, Ohio
  • 2Department of Radiology, New York University Langone Medical Center, New York, New York
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Publication History

Publication Date:
04 November 2009 (online)

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ABSTRACT

Encountering an incidental tumor or tumor-like lesion during a routine magnetic resonance imaging (MRI) of the knee is not uncommon. By far, the majority of these lesions are benign and many of them have characteristic appearances on MRI to allow a confident diagnosis. The most common, and some less common, but important incidental lesions will be discussed including bone lesions (bone cysts, subchondral fractures, enchondromas, non-ossifying fibromas, “tug” lesions, osteochondromas, bone infarcts, and prominent red marrow) and soft tissue lesions (synovial hemangiomas, intracapsular chondromas, bursae, synovitis, soft-tissue cysts, hematomas, heterotopic ossification, vascular lesions and normal variants). Gaining familiarity with the MRI appearance of these incidentally encountered lesions will be helpful in avoiding unnecessary additional tests and/or imaging.

KEYWORDS

MRI - knee - tumor - tumor-like - mass - normal variant

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Naveen SubhasM.D. 

Department of Radiology, Cleveland Clinic

9500 Euclid Ave.–A21, Cleveland OH 44195

Email: Subhasn@ccf.org

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