関節リウマチに伴う巨大ベーカー嚢腫

95×26 mmの寸法が半膜膜腱に由来する「巨大なパン屋の嚢胞関連の関節リウマチ（RA）」のまれな症例を報告します。患者は、慢性疼痛と、膝蓋窩の窩の後部の側面と子牛の遠位の3分の1の間にある左の子牛の後ろに触知可能な腫瘤を呈した。腹部の後部にある軟部組織に位置したMRI嚢胞性病変では、内側半月板後角の内部および変性が観察されました。関節鏡視下の関節の壊死具および生体力学的弁の切除を介した嚢胞の部分的な切除を実施しました。患者はリウマチ学部でのフォローアップ訪問を継続し、1年間のフォローアップで嚢胞関連症状の再発はありませんでした。同様の症例が以前に文献で報告されていました。しかし、私たちが知る限り、記載されているように扱われた巨大なパン屋の嚢胞関連RAはまだ提示されていません。

We report a rare case of a "giant Baker's cyst-related rheumatoid arthritis (RA)" with 95 × 26 mm dimensions originating from the semimembranosus tendon. The patient presented with chronic pain and a palpable mass behind his left calf located between the posteriosuperior aspect of the popliteal fossa and the distal third of the calf. In MRI cystic lesion which was located in soft tissue at the posterior of gastrocnemius, extensive synovial pannus inside and degeneration of medial meniscus posterior horn were observed. Arthroscopic joint debridement and partial excision of the cyst via biomechanical valve excision were performed. The patient continued his follow-up visits at Rheumatology Department and there was no recurrence of cyst-related symptoms in 1-year follow-up. Similar cases were reported in the literature previously. However, as far as we know, a giant Baker's cyst-related RA, which was treated as described, has not yet been presented.