Lipoma Arborescens of the Knee

Azzouz, Dhouha; Tekaya, R.; Hamdi, Wafa; Kchir, Mohamed Montacer

doi:10.1097/rhu.0b013e318190757c

Cited by 15 publications

(11 citation statements)

References 14 publications

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“…Less than 60 cases have been published in the English language medical literature 4. Based on a study by Vilanova et al ,5 in a cohort of 12 578 knee MRIs, only 32 (0.25%) presented with lipoma arborescens while Iovane et al 6 noted the presence of lipoma arborescens in 9 of the 6387 knee MRIs (0.14%).…”

Section: Discussionmentioning

confidence: 99%

Knee pain: a cautionary tale of lipoma arborescens

et al. 2016

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We report a case of a 51-year-old man, presenting with non-specific symptoms of unilateral knee pain and swelling, who had experienced a 1-year period of multiple misdiagnoses. He was finally diagnosed with lipoma arborescens only after a MRI of the knee was performed, with postoperative histological confirmation after treatment with joint replacement surgery. The possible pathophysiology, diagnostic modalities and treatment of lipoma arborescens are discussed. The authors hope that our experience with this rare condition can be of learning value to fellow clinicians who frequently encounter patients with arthritis, as an accurate diagnosis and management of lipoma arborescens can give rise to a better clinical outcome for the patient.

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Section: Discussionmentioning

confidence: 99%

Knee pain: a cautionary tale of lipoma arborescens

et al. 2016

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“…Magnetic resonance imaging is highly accurate for the identification and characterization of LA and is the best imaging modality and the cornerstone of the preoperative diagnosis. [13][14][15] Villous synovial proliferations with a signal intensity similar to that of fat in all sequences, mass-like subsynovial deposits, large effusions, potential demonstration of associated chemical shift artifact at the interlace of the synovial lesion and the effusion, and no evidence of hemosiderin deposition are included in the MRI results identifying LA. [1,3,5,7] These typical results allow for a confident preoperative diagnosis and can exclude other possible clinical and radiological mimickers,, such as synovial osteochondromatosis, pigmented villonodular synovitis, synovial hemangioma, and synovial lipoma.…”

Section: Discussionmentioning

confidence: 99%

Lipoma Arborescens in Childhood: A Report of Two Sisters

Aydın

2012

Turk J Rheumatol

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Lipoma arboresan (LA) sinovyal eklemler ve bursaların nadir benign bir lezyonudur. En sık tutulum yeri dizlerdir. Manyetik rezonans görüntüleme bulguları tipiktir. Çocuklardaki LA olgu sunumlarının sayısı, erişkinlere kıyasla oldukça azdır. Bu çalışmada, her iki dizde ağrı ve şişlik yakınması muayene edilen dokuz ve 15 yaşlarındaki iki kız kardeş sunuldu. Manyetik rezonans görüntülemede her iki çocuğun sağ dizinde LA için tipik özellikler gösterildi. Çocukluk çağındaki hastalarda sistemik tutulum olmadan mono/oligoartiküler efüzyon ve sinovyal hipertrofi varlığında, ayırıcı tanıda LA akla getirilmelidir. Manyetik rezonans görüntüleme, LA tanısında duyarlı bir yöntemdir.Anahtar sözcükler: Ailesel yatkınlık; juvenil oligoartrit; diz; lipoma arboresan; manyetik rezonans görüntüleme.Lipoma arborescens (LA) is a rare benign lesion of synovial joints and bursae. The knee is the most common site of the involvement. Magnetic resonance imaging findings are typical in the diagnosis. The number of case reports of LA in children is significantly lower compared to the adults. In this article, two nine-year-old and 15-year-old sisters who were examined for the complaints of bilateral pain and swelling in knees were presented. Magnetic resonance imaging demonstrated typical features of LA in the right knees of both children. Pediatric patients with mono/oligoarticular effusion and synovial hypertrophy without systemic involvement, LA should be considered in differential diagnosis. Magnetic resonance imaging is a sensitive modality in the diagnosis of LA.

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“…It is known also as synovial lipomatosis, and is characterized by replacement of the subsynovial tissue by mature adipocytes, giving rise to prominent intra-articular villous proliferation of the synovium. Less than 60 cases have been published in the English language medical literature as shown by the database of medical search engines of Pub Med and OVID 1. The majority are case reports and the largest series of cases included six cases 3.…”

Section: Discussionmentioning

confidence: 99%

“…Clinically, it can present as intermittent joint pain and swelling with a monoarticular or polyarticular pattern 3. Most of cases can be predicted by MRI 1. This report describes a case a 26-year-old man who presented with an intermittent left knee joint pain and effusion and was diagnosed histopathologically with lipoma arborescens.…”

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confidence: 95%

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Intra-articular lipoma arborescens of the knee joint

Al‐Shraim

2011

Annals of Saudi Medicine

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Intra-articular lipoma arborescens (LA) is a rare entity that can present with monoarticular or polyarticular involvement of joints such as knees, ankles, hips, shoulders, and elbows. We describe a case in a 26-year-old man who presented with intermittent pain and swelling of the left knee joint for the previous 2 years. Physical examination showed only tenderness over the medial line of the left knee joint. MRI found only joint effusion; therefore, the patient was referred to the orthopedic clinic where he underwent arthroscopy, which revealed a diffuse yellow soft tissue synovial papillary growth involving both medial and lateral gutters of the suprapatellar pouch. A biopsy reported intra-articular LA. This is the first case of LA reported in Saudi Arabia. LA should be included in the clinical and radiologic differential diagnosis of cases with persistent knee joint effusion.

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Lipoma Arborescens of the Knee

Cited by 15 publications

References 14 publications

Knee pain: a cautionary tale of lipoma arborescens

Knee pain: a cautionary tale of lipoma arborescens

Lipoma Arborescens in Childhood: A Report of Two Sisters

Intra-articular lipoma arborescens of the knee joint

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