Most popliteal cysts are asymptomatic. However, cysts may rupture, resulting in pain and swelling of the leg that could also arise from other diseases, including deep vein thrombosis, lymphedema, cellulitis, and tear of a muscle or tendon. Therefore, it is difficult to diagnose a ruptured popliteal cyst based on only a patient's history and physical examination. Musculoskeletal ultrasound has been regarded as a diagnostic tool for ruptured popliteal cyst. Here, we describe a patient who was rapidly diagnosed as ruptured popliteal cyst by ultrasonography. Therefore, ultrasound could be used to distinguish a ruptured popliteal cyst from other diseases in patients with painful swollen legs before evaluation for deep vein thrombosis.

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• Clinical features and risk factors for Baker’s cyst in patients with rheumatoid arthritis
  Wan Lan Jiang, Ting Xu, Bi Qing Zhang, Lu Zhang, Min Wu, Wen Xie
  Modern Rheumatology.2025; 35(2): 273.     CrossRef
• Simultaneous Baker's cyst rupture and deep venous thrombosis accompanied by acute pulmonary embolism
  Hiromasa Tsubouchi, Hidenori Onishi, Koji Maeno, Hiroyuki Hayashi, Osamu Yamamura
  Sonography.2025; 12(1): 152.     CrossRef
• An unexpected event after deep vein thrombosis in spinal cord injury: Ruptured Baker’s cyst
  Alper Mengi, Ipek Ilhan
  The Journal of Spinal Cord Medicine.2022; 45(2): 301.     CrossRef
• Assessment of the Magnetic Resonance Imaging Features of Baker’s Cysts and Their Correlation with the Age of Patients
  S. A. Chernyad’ev, V. B. Aretinskiy, N. I. Sivkova, A. V. Zhilyakov, N. Yu. Korobova, V. S. Blinov, E. A. Grebenev
  Journal of radiology and nuclear medicine.2020; 101(3): 155.     CrossRef
• Efficacy and Safety of Musculoskeletal Ultrasound Guided Aspiration and Intra-Lesional Corticosteroids Injection of Ruptured Baker’s Cyst: A Retrospective Observational Study
  Mohamed Mortada, Yomna A Amer, Rabab S Zaghlol
  Clinical Medicine Insights: Arthritis and Musculoskeletal Disorders.2020; 13: 117954412096738.     CrossRef
• Successful arthroscopic treatment of refractory and complicated popliteal cyst associated with rheumatoid arthritis in combination with osteoarthritis: case series and literature review
  Jae-Hyuk Yang, Hyuk-Hee Kwon, Jin Kyu Lee, So Young Bang, Hye-Soon Lee
  Rheumatology International.2019; 39(12): 2177.     CrossRef
• The crescent sign of ruptured baker's cyst
  Junki Mizumoto
  Journal of General and Family Medicine.2019; 20(5): 215.     CrossRef
• Pseudothrombophlebitis syndrome in a rheumatoid arthritis patient with swollen calf and persistent itching: a case report
  Cevriye Mülkoğlu, Zeynep Alpoğuz Yılmaz, Barış Nacır, Hakan Genç
  BMC Musculoskeletal Disorders.2018;[Epub]     CrossRef
• Giant Baker’s Cyst Associated with Rheumatoid Arthritis
  Levent Adiyeke, Emre Bılgın, Tahir Mutlu Duymus, İsmail Emre Ketencı, Meriç Ugurlar, John Nyland
  Case Reports in Orthopedics.2017;[Epub]     CrossRef
• The fate of Baker’s cyst after total knee arthroplasty
  H. Hommel, C. Perka, S. Kopf
  The Bone & Joint Journal.2016; 98-B(9): 1185.     CrossRef