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Distant metastasis in patients with myxofibrosarcoma
Hiroyuki Tsuchie1, Mitsunori Kaya2, Hiroyuki Nagasawa1
1a Department of Orthopedic Surgery , Akita University Graduate School of Medicine , 1-1-1 Hondo , Akita 010-8543 , Japan.
Upsala Journal of Medical Sciences
|August 18, 2017
Summary
Distant metastasis in myxofibrosarcoma is common, with lung metastasis being more aggressive than lymph node metastasis. This study highlights key differences in clinical presentation and prognosis based on metastasis site.
Area of Science:
- Oncology
- Medical Research
- Sarcoma Studies
Background:
- Myxofibrosarcoma is known for local recurrence, but data on distant metastasis patterns are limited.
- Understanding metastasis is crucial for improving patient outcomes in myxofibrosarcoma.
Purpose of the Study:
- To evaluate the clinical and histological features of distant metastasis in myxofibrosarcoma patients.
- To compare metastasis patterns between lung and lymph node involvement.
- To identify factors influencing prognosis in metastatic myxofibrosarcoma.
Main Methods:
- Retrospective analysis of 16 myxofibrosarcoma patients with distant metastases.
- Comparison of clinical data (age, sex, tumor characteristics, FNCLCC grade, AJCC stage) between lung and lymph node metastasis groups.
- Analysis of time to metastasis and survival rates.
Main Results:
- Pulmonary metastases occurred in 11 of 16 patients; lymph node metastasis was observed in 5.
- The median time to distant metastasis was 17.4 months.
- Lung metastasis onset was significantly earlier, and survival rates were lower compared to lymph node metastasis (p < 0.05).
Conclusions:
- Both lung and lymph node metastases are frequent in myxofibrosarcoma.
- Myxofibrosarcoma with lung metastasis demonstrates more aggressive behavior than that with lymph node metastasis.
- Metastasis site is a significant prognostic indicator in myxofibrosarcoma.
