Cerqueira Wagner Santana, Melo Rayssa Araruna Bezerra de, Costa Felipe D'Almeida, Comunello Juliane, Bitencourt Almir Galvão Vieira, Chung Wu Tu
A. C. Camargo Cancer Center, São Paulo, SP, Brazil.
Rev Bras Ortop. 2017 Mar 19;53(2):252-256. doi: 10.1016/j.rboe.2017.03.011. eCollection 2018 Mar-Apr.
Lipoma arborescens (LA) is an uncommon non-neoplastic disorder that may affect almost any joint, mainly the knee. LA is very rare in the elbow, and there are only a few cases reported in the literature. This study aimed to describe a case of LA in the elbow, presenting with features of a high-grade tumor. The authors report the case of a 51-years-old male who presented to this institution with pain and swelling on the left elbow. The patient had a seven-year history of investigation, with inconclusive diagnosis. Magnetic resonance imaging (MRI) showed an expansive mass with local aggressiveness. Due to these characteristics, it was not possible to discard soft tissue sarcoma at the differential diagnosis. After biopsy and a multidisciplinary team meeting, the authors opted for surgical resection. The final anatomopathological result confirmed the diagnosis of LA. Despite not being a true neoplasm, LA can cause many symptoms and functional impairment of the affected joint. It is important to keep this diagnosis in mind when any expansive mass surrounding a joint is observed.
树枝状脂肪瘤（LA）是一种罕见的非肿瘤性疾病，可累及几乎任何关节，主要是膝关节。LA在肘部非常罕见，文献中仅有少数病例报道。本研究旨在描述1例肘部LA病例，其表现具有高级别肿瘤的特征。作者报告了1例51岁男性，因左肘部疼痛和肿胀前来本机构就诊。该患者有7年的检查病史，诊断不明确。磁共振成像（MRI）显示有一个具有局部侵袭性的膨胀性肿块。基于这些特征，在鉴别诊断中无法排除软组织肉瘤。活检及多学科团队会诊后，作者选择手术切除。最终的解剖病理学结果证实为LA。尽管LA并非真正的肿瘤，但它可导致许多症状及受累关节的功能障碍。当观察到关节周围有任何膨胀性肿块时，牢记这一诊断很重要。
