Subscribe to RSS
DOI: 10.1055/s-0040-1715517
Intra-articular Knee Lipomatous Tumor: Two Similar but Different Cases*
Article in several languages: português | English
Abstract
Although lipomatous tumors are common, intra-articular occurrence is exceedingly rare and sparsely described in the literature. Regarding these rare entities, most are benign, progressively growing tumors and often occur in the knee, yet it is crucial to distinguish the less infrequent lipoma arborescens (LA) from the rarer synovial lipoma, as they differ in presentation and pathogenesis. Magnetic resonance imaging is the exam of choice in their assessment and in differential diagnosis, playing a central role nowadays.
Excision and synovectomy, either arthroscopic or by arthrotomy, provide good outcomes with low recurrence rates. By reporting two surgically treated distinct cases of intra-articular lipomatous tumors of the knee, the authors intend to review the literature and discuss their etiology, clinical and imaging aspects as well as treatment approach.
∗ Work developed at Hospital CUF Infante Santo, Portugal.
Publication History
Received: 30 April 2020
Accepted: 01 June 2020
Article published online:
25 September 2020
© 2021. Sociedade Brasileira de Ortopedia e Traumatologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
Thieme Revinter Publicações Ltda.
Rua do Matoso 170, Rio de Janeiro, RJ, CEP 20270-135, Brazil
-
Referências
- 1 Yan CH, Wong JWK, Yip DK. Bilateral knee lipoma arborescens: a case report. J Orthop Surg (Hong Kong) 2008; 16 (01) 107-110
- 2 Vilanova JC, Barceló J, Villalón M, Aldomà J, Delgado E, Zapater I. MR imaging of lipoma arborescens and the associated lesions. Skeletal Radiol 2003; 32 (09) 504-509
- 3 Matsumoto K, Okabe H, Ishizawa M, Hiraoka S. Intra-articular lipoma of the knee joint. A case report. J Bone Joint Surg Am 2001; 83 (01) 101-105
- 4 Poorteman L, Declercq H, Natens P, Wetzels K, Vanhoenacker F. Intra-articular synovial lipoma of the knee joint. BJR Case Rep 2015; 1 (02) 20150061
- 5 Tsifountoudis I, Kapoutsis D, Tzavellas AN, Kalaitzoglou I, Tsikes A, Gkouvas G. Lipoma Arborescens of the Knee: Report of Three Cases and Review of the Literature. Case Rep Med 2017; 2017: 3569512
- 6 Dalla Rosa J, Nogales Zafra JJ. Large intra-articular true lipoma of the knee. BMC Musculoskelet Disord 2019; 20 (01) 110
- 7 Sanamandra SK, Ong KO. Lipoma arborescens. Singapore Med J 2014; 55 (01) 5-10 , quiz 11
- 8 Minami S, Miyake Y, Kinoshita H. Lipoma arborescens arising in the extra-articular bursa of the knee joint. SICOT J 2016; 2: 28