J Korean Foot Ankle Soc.  2023 Mar;27(1):35-38. 10.14193/jkfas.2023.27.1.35.

Intramuscular Myxoma of the Foot: A Case Report

• Shin WJ
• Lee CS
• Hwang CM
• Jang MG
• Song JH

• KMID: 2540405
• DOI: http://doi.org/10.14193/jkfas.2023.27.1.35

Abstract

Intramuscular myxoma is a rare benign myxoid tumor that is difficult to differentiate from other benign soft tissue tumors and sarcoma, and as a result, intramuscular myxoma is commonly misdiagnosed as another type of soft tissue tumor. Accordingly, awareness of the existence of this condition is a fundamental requirement for treatment decision-making. Furthermore, although intramuscular myxoma appears grossly to be well-circumscribed, it can infiltrate adjacent soft tissue microscopically. Tumor resection is the recommended treatment, but appropriate surgical margin sizes remain controversial. To the best of our knowledge, this is the first South Korean report to be issued on the treatment of intramuscular myxoma of the foot.

Keyword

Myxoma; Foot; Benign; Soft tissue tumor

Figure

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  Figure. 1 T2-weighted fat suppressed axial (A), coronal (B), and T2-weighted sagittal (C) images of magnetic resonance imaging show an intramuscular myxoma with septation in the central compartment of the left foot.

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  Figure. 2 (A) Preoperative gross image of left foot of the patient is shown. (B) Reddish intramuscular myxoma was infiltrated in the central compartment of the foot and it was adhered to adjacent soft tissue structures. (C) Gross intraoperative image of the left foot after excision of mass is shown.

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  Figure. 3 Gross image of the resected masses of myxoma (A) and its histologic image (B) are shown. Myxoid stroma with myxoma cells was shown in the histologic image (H&E stain, ×100).

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