Abstract
BackgroundIntra-articular lipomas are rare and very few cases have been reported in the knee. To the best of our knowledge, here we report the largest lipoma to have ever been observed in the knee. It is crucial to avoid the misdiagnose of lipoma arborescens, which is associated with degenerative joint disease. Lipoma is a homogeneous, ovoid, adipose tissue tumor that is contained within a fibrous capsule and not associated with previous disease.Case presentationA 48-year-old male, with a soft-tissue tumor on the superomedial aspect of the right knee. Magnetic resonance imaging (MRI) revealed an intra-articular lipoma. The mass was resected by means of a limited arthrotomy.ConclusionsKnee lipoma is an extremely rare disease that must be diagnosed by MRI. Where possible, it should be resolved by arthroscopic resection.
Highlights
Intra-articular lipomas are rare and very few cases have been reported in the knee
He we present the clinical case of a patient with an intra-articular lipoma in his knee
Differential diagnosis should be made to rule out lipoma arborescens, intra-articular liposarcoma, pigmented villonodular synovitis (PVNS) and Hoffa’s disease [26]
Summary
Intra-articular lipomas are rare and very few cases have been reported in the knee. To the best of our knowledge, here we report the largest lipoma to have ever been observed in the knee. Lipomas are the most common type of soft-tissue tumor, intra-articular examples are extremely rare. Intra-articular lipomas are extremely rare, with the most frequent location being the knee, cases have been described in the hip, lumbar spine, elbow, shoulder and wrist [21]. He we present the clinical case of a patient with an intra-articular lipoma in his knee. Case presentation A 48-year-old male with no relevant medical history was referred to our service from another hospital with a soft-tissue mass on his right knee.
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