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Intra-articular synovial hemangioma; a rare cause of knee pain and swelling

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Archives of Orthopaedic and Trauma Surgery Aims and scope Submit manuscript



Synovial hemangioma is a rare intra-articular benign tumor that is difficult to diagnose because of its nonspecific symptoms. Patients are generally children or young adults with a nontraumatic recurrent swollen painful knee.

Case presentation

A 24-year-old woman presented with a 20-year history of recurrent pain and swelling in the right knee. Physical examination revealed a small painful point adjacent to the medial side of the patella. Magnetic resonance imaging revealed an intra-articular tumor. After arthroscopic examination, surgical excision was performed. The histology was characteristic of synovial hemangioma.


Open complete synovectomy of the circumscribed capillary hemangioma was successful, and the patient remains asymptomatic 2 years after surgery

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This investigation was performed at the Department of Orthopedic Surgery, Saiseikai Nara Hospital, Nara, Japan. No benefits in any form have been received or will be received from any commercial party related directly or indirectly to the subject of this article. No funds were received in support of this study.

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Correspondence to Kohjirou Okahashi.

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Okahashi, K., Sugimoto, K., Iwai, M. et al. Intra-articular synovial hemangioma; a rare cause of knee pain and swelling. Arch Orthop Trauma Surg 124, 571–573 (2004).

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