Abstract
Background: Myxoma is a rare tumor most frequently discovered in cardiac locations. The present report describes a rare case of extracardiac origin in the femoral vein, initially presenting as leg pain and swelling. Case Presentation: A 40-year-old woman was admitted to our regional hospital with unilateral left leg swelling and pain. She underwent a Duplex scan and CT scan, which revealed a 21 x 25 mm diameter mass in contact with the distal femoral vein, initially diagnosed as a thrombosed sacciform aneurysm. The patient underwent surgical excision of a bulging mass in the vein wall, which was directly closed by running suture. The anatomopathological report concluded with a myxoma. One-year follow-up showed a patent vein without evidence of recurrence of the tumor. Conclusion: Although very rare, peripheral venous myxoma may manifest with common symptoms as leg pain and swelling. Current vascular imaging and complete surgical excision should be performed without delay to allow a precise diagnosis and prevent further complications.
Highlights
Myxoma is a rare tumor most frequently discovered in cardiac locations
The present report describes a rare case of extracardiac origin in the femoral vein, initially presenting as leg pain and swelling
We describe with this report the first case of a distal femoral vein myxoma, which initially caused leg pain and swelling
Summary
Myxoma is a rare benign myxoid tumor of primitive connective tissue. It is the most common type of cardiac tumors, originating in 75% of cases in the left atrium and 15-20% in the right atrium [1]. We describe with this report the first case of a distal femoral vein myxoma, which initially caused leg pain and swelling. The lower limb deep venous system was patent She underwent a phlebo CT that confirmed the mass in close contact with the distal part of the femoral vein (Figure 1). This lesion was considered a major risk of emboli or deep venous thrombosis. Immunohistochemistry found expression of epithelial membrane antigen (EMA) and CD34 It concluded to a benign soft tissue tumor compatible with a myxoma (Figure 4). The follow-up DU at seven days, 1, 3, 6 and 12 months showed patent lower limb deep veins without evidence of local recurrence. The case was presented at our local tumor board, where no further follow-up was recommended due to the benign condition of the lesion and the low rate of recurrence
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