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Updated: Jan 27, 2026

A Non-Invasive Method for Generating the Cyclic Loading-Induced Intra-Articular Cartilage Lesion Model of the Rat Knee
Published on: July 5, 2021
Large intra-articular true lipoma of the knee
Jaime Dalla Rosa1, José Juan Nogales Zafra2
1Complejo Hospitalario Integral Privado, Avda. Carlos Haya 121, CP: 29010, Málaga, Spain. jaime.dallarosa@gmail.com.
Background:
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. 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 Presentation:
A 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.
Conclusions:
Knee lipoma is an extremely rare disease that must be diagnosed by MRI. Where possible, it should be resolved by arthroscopic resection.
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