title: MR imaging of the knee: incidental osseous lesions.
abstract: The knee joint remains the articulation most frequently assessed by MR imaging, and osseous tumor and tumor-like lesions are not uncommon incidental imaging findings. This article reviews the most commonly encountered incidental lesions, emphasizing the characteristic MR imaging features. It is intended not as a complete review of the imaging findings associated with these lesions but as a summary, highlighting the MR imaging features that are most useful in suggesting a specific diagnosis. The authors organize incidental lesions into the following broad categories: cartilaginous, fibro-osseous, and degenerative. They do not address those lesions that are typically symptomatic and, as a result, likely to be directly related to the patients' clinical presentation and subsequent imaging.
authors.affiliation: Mayo Clinic College of Medicine, Rochester, MN, USA. kransdorf.mark@mayo.edu
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Kransdorf
authors.forename: Jeffrey J
authors.initials: JJ
authors.lastname: Peterson
authors.forename: Laura W
authors.initials: LW
authors.lastname: Bancroft
mesh_terms: D002357:Cartilage Diseases / Q000175:diagnosis; D006801:Humans; D033162:Incidental Findings; D007592:Joint Diseases / Q000175:diagnosis*; D007719:Knee Joint / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009372:Neoplasms, Connective Tissue / Q000175:diagnosis; D020370:Osteoarthritis, Knee / Q000175:diagnosis; D013581:Synovial Cyst / Q000175:diagnosis