High-grade intra-articular liposarcoma of the knee.

Shaerf, Daniel A; Mann, Bhupinder; Alorjani, Mohammed; Aston, Will; Saifuddin, Asif · Skeletal Radiol · 2011

case_report · Level V

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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.

Medical subject headings

Anatomy