title: High-grade intra-articular liposarcoma of the knee.
abstract: A high-grade pleomorphic intra-articular liposarcoma of the knee is described in a 48-year-old man, which was diagnosed histologically after arthroscopy of the knee for suspected pigmented villonodular synovitis (PVNS). The patient proceeded to undergo an extra-articular resection with a custom-made prosthesis. This report highlights the need to remember this rare tumour in the differential diagnosis of atypical soft tissue lesions within the knee joint prior to instrumentation.
authors.affiliation: The London Sarcoma Service, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK. shaerf@gmail.com
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Shaerf
authors.forename: Bhupinder
authors.initials: B
authors.lastname: Mann
authors.forename: Mohammed
authors.initials: M
authors.lastname: Alorjani
authors.forename: Will
authors.initials: W
authors.lastname: Aston
authors.forename: Asif
authors.initials: A
authors.lastname: Saifuddin
mesh_terms: D006801:Humans; D007719:Knee Joint / Q000473:pathology* / Q000601:surgery*; D008080:Liposarcoma / Q000473:pathology* / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012983:Soft Tissue Neoplasms / Q000473:pathology* / Q000601:surgery*; D016896:Treatment Outcome