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http://dx.doi.org/10.5292/jkbjts.2014.20.2.54

Soft Tissue Malignant Myoepithelioma in the Extremities  

Kong, Chang-Bae (Department of Orthopedic Surgery, Korea Cancer Center Hospital)
Lee, Jung-Wook (Department of Orthopedic Surgery, Korea Cancer Center Hospital)
Koh, Jae-Soo (Department of Pathology, Korea Cancer Center Hospital)
Song, Won Seok (Department of Orthopedic Surgery, Korea Cancer Center Hospital)
Cho, Wan Hyeong (Department of Orthopedic Surgery, Korea Cancer Center Hospital)
Jeon, Dae-Geun (Department of Orthopedic Surgery, Korea Cancer Center Hospital)
Lee, Soo-Yong (Department of Orthopedic Surgery, Korea Cancer Center Hospital)
Publication Information
The Journal of the Korean bone and joint tumor society / v.20, no.2, 2014 , pp. 54-59 More about this Journal
Abstract
Purpose: We report the diagnosis, treatment outcomes and prognosis of the patients with soft tissue malignant myoepithelioma in the extremities. Materials and Methods: We retrospectively reviewed 6 patients with soft tissue malignant myoepithelioma in the extremities who were treated at our institution between 2008 and 2014. Two patients received unplanned excision at another hospital and remaining 4 patients underwent the biopsy procedures and received wide excision at our hospital. Results: There were 3 men and 3 women with mean age of 41 (33-54) years. The average follow up was 28 (9-45) months. Among the 6 patients, only 4 patients underwent biopsy procedures under the impression of malignant soft tissue sarcoma. Surgical margins for these 4 patients were negative. Two patients who had unplanned excision received another re-excision and one of them showed no residual tumor in the resected specimen. Local recurrences were developed in all patients and distant metastasis in 4 patients. All 4 patients who developed distant metastasis died due to disease progression. Among the 2 patients who developed local recurrence only, one patient has another local recurrence after re-operation and remaining one patient is no evidence of disease for 2 years after resection of locally recurred mass. Conclusion: Soft tissue malignant myoepithelioma in the extremities is a rare disease and shows an aggressive behavior. Appropriate biopsy under the impression of soft tissue malignancy is necessary and complete surgical resection with wide margins is the recommended treatment of choice.
Keywords
malignant myoepithelioma; soft tissue; extremities;
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