Abstract
This is the first case report of a deep soft-tissue leiomyoma with intraarticular localization within the knee joint. A 14-year-old girl presented with a painless mass in the dorsal aspect of her knee which she had noticed some 9 months earlier. While on plain radiographs no bony lesions were visible, magnetic resonance imaging (MRI) revealed an intraarticularly located tumor with well-defined margins. Intraoperatively, the tumor was found adjacent to the posterior cruciate ligament. The final diagnosis was established immunohistologically. Although this is a very rare tumor, it has to be considered in the differential diagnosis for soft-tissue swellings of the popliteal fossa.
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Received: 15 January 2001
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Schmidt-Rohlfing, B., Tietze, L., Siebert, C. et al. Deep soft-tissue leiomyoma of the popliteal fossa in a 14-year-old girl. Arch Orth Traum Surg 121, 604–606 (2001). https://doi.org/10.1007/s004020100293
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DOI: https://doi.org/10.1007/s004020100293