Malignant fibrous histiocytomas in children
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Malignant fibrous histiocytomas in children are rare. This study suggests pediatric patients may experience a better prognosis compared to adults, with no observed recurrence or metastasis after treatment.
Area of Science:
- Pediatric Oncology
- Surgical Oncology
- Pediatric Pathology
Background:
- Malignant fibrous histiocytomas (MFH) are rare soft tissue tumors.
- The natural history and prognosis of MFH in pediatric populations are not well-established.
- Limited data exists on the optimal management and outcomes for children diagnosed with MFH.
Purpose of the Study:
- To delineate the natural history of malignant fibrous histiocytomas in patients under 18 years of age.
- To evaluate treatment outcomes and long-term prognosis for pediatric MFH.
- To compare the prognosis of pediatric MFH with that reported in adult populations.
Main Methods:
- Retrospective review of six pediatric patients diagnosed with malignant fibrous histiocytomas over a 6-year period.
- Analysis of tumor site, surgical intervention (wide local excision, amputation), and adjuvant therapies (radiation, chemotherapy).
- Assessment of patient outcomes including local recurrence and distant metastasis with a median follow-up exceeding 4 years.
Main Results:
- Six pediatric patients (age < 18) were treated for malignant fibrous histiocytomas.
- Tumor sites included retroperitoneum (2), neck (2), and extremities (2).
- All patients remained disease-free post-treatment, with no local recurrence or distant metastases observed during follow-up.
Conclusions:
- Malignant fibrous histiocytomas in children appear to have a favorable prognosis.
- Aggressive surgical management combined with adjuvant therapies, when indicated, leads to excellent outcomes in pediatric MFH.
- Pediatric MFH may exhibit a better prognosis than their adult counterparts, warranting further investigation.
Abstract:
The natural history of malignant fibrous histiocytomas in children has not been well delineated. During a 6-year period, we have treated six patients less than 18 years of age. The sites of origin included the retroperitoneum in 2 patients, neck in 2 patients, and extremities in 2 patients. Surgical treatment consisted of wide local excision in 5 patients and amputation in 12; radiation and/or chemotherapy were administered to 2 patients following resection of all tumor. All children remain free of local recurrence or distant metastases with a median follow-up in excess of 4 years. These data suggest that malignant fibrous histiocytomas in children may have a better prognosis than in adults.