Lipoma Arborescens: A Rare Cause of Synovial Mass of the Knee at Pediatric Age with 10 Year Follow-up

Year 2023, Volume: 76 Issue: 2, 159 - 162, 29.06.2024

Mustafa Onur Karaca , Mehmet Can Gezer , Hüseyin Yusuf Yıldız

Abstract

Lipoma arborescens (LA) is a benign lesion that occurs in the synovial joints and consists of villous lipomatous proliferation of mature fat cells in the
subsynovial tissue, often involving the knee joint. In addition to the knee joint, shoulder, elbow, and hip joint involvements have also been reported
in the literature. The most common site of involvement in the knee joint is the suprapatellar pouch. Patients usually present with painless joint range
of motion and swelling. Laboratory parameters are within normal limits. LA can be divided into two subtypes as primary and secondary according to
the age of the patient or the underlying rheumatological diseases. The primary type is mostly seen in pediatric patients and there is no underlying
chronic inflammation. In the secondary type, there is underlying chronic inflammation or trauma. In this case study, we described the operation
process and 10-year follow-up of an 8-year-old pediatric patient who applied to our clinic with knee swelling.

Keywords

Lipoma Arborescens , Pediatric Patient , Follow-Up

Ethical Statement

Informed Consent: Written informed consent was obtained from the patient for this case report. Peer-reviewed: Externally peer-reviewed.

Supporting Institution

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Project Number

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Thanks

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10 Yıllık Takip ile Pediatrik Yaşta Dizde Sinovyal Kitlenin Nadir Bir Nedeni Lipoma Arborescens

Abstract

Lipoma arboresans (LA), sinovyal eklemlerde görülen ve sıklıkla diz ekleminin tutan olgun yağ hücrelerinin subsinovyal dokuda villöz lipomatöz
proliferasyonundan oluşan iyi huylu bir lezyondur. Diz eklemi dışında omuz, dirsek kalça eklem tutulumları da literatürde bildirilmiştir. Diz ekleminde
en sık tutulan yer subrapatellar bursadır. Hastalar genellikle ağrısız eklem hareket kısıtlılığı ve şişlik ile başvurular. Laboratuvar parametreleri sıklıkla
normaldir. LA hastanın yaşına ya da alta yatan romatolojik hastalıklara primer ve sekonder olarak 2 tipe ayrılabilir. Primer tip daha çok genç
hastalarda görülür ve alta yatan kronik bir enflamasyon yoktur. Sekonder tipte ise alta yatan kronik enflamasyon veya travma vardır. Biz bu olgu
çalışmamızda, kliniğimize dizde şişlik nedeniyle başvuran 8 yaşındaki pediatrik hastanın operasyon sürecini ve 10 yıllık takibini anlattık.

Keywords

Lipoma Arboresans , Pediatrik Hasta , Takip

Ethical Statement

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Supporting Institution

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Project Number

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Thanks

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