Department of Radiology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium.
Department of Radiology, AZ Groeninge, President Kennedylaan 4, 8500, Kortrijk, Belgium.
Skeletal Radiol. 2020 Feb;49(2):317-319. doi: 10.1007/s00256-019-03276-z. Epub 2019 Jul 16.
We report a case of a subsynovial epidermal inclusion cyst in a 47-year-old woman with a painful spontaneous swelling of the right knee and a 2-year history of puncture and arthroscopy. Epidermal inclusion cysts are one of the most common benign subcutaneous tumours. Very rarely, they are located in an articulation and can cause an inflammatory reaction when rupture occurs. Simple surgical excision is the preferred therapy. The main goal of this case report is to include the possibility of an intra-articular epidermal inclusion cyst into the differential when imaging shows an intra-articular structure, and more so if there is a history of trauma, intra-articular puncture or arthroscopy.
我们报告了一例 47 岁女性右膝关节滑膜下表皮包涵囊肿，患者有膝关节疼痛性自发性肿胀病史，2 年前曾接受过穿刺和关节镜检查。表皮包涵囊肿是最常见的良性皮下肿瘤之一。非常罕见的情况下，它们位于关节内，当破裂时可引起炎症反应。单纯手术切除是首选治疗方法。本病例报告的主要目的是在影像学显示关节内结构时，将关节内表皮包涵囊肿纳入鉴别诊断中，尤其是如果有创伤、关节内穿刺或关节镜检查史的情况下。
