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Soft-tissue sarcomas of the head and neck in children
Insights
Pediatric head and neck soft-tissue sarcomas are often curable, especially without skull base invasion. Early cranial irradiation may prevent meningeal recurrence in high-risk patients with invasive disease.
Area of Science:
- Pediatric Oncology
- Radiation Oncology
- Medical Imaging
Background:
- Soft-tissue sarcomas in children present unique challenges, particularly those affecting the head and neck.
- Accurate staging and treatment planning are crucial for improving outcomes in pediatric cancer patients.
Purpose of the Study:
- To evaluate the outcomes of pediatric soft-tissue sarcomas of the head and neck.
- To assess the role of computed tomography (CT) in staging and treatment.
- To determine the effectiveness of prophylactic cranial irradiation in preventing meningeal recurrence.
Main Methods:
- Retrospective review of 32 children treated between 1971 and 1981.
- Analysis of treatment modalities including chemotherapy and radiation therapy (RT).
- Correlation of CT scan findings with disease recurrence and survival rates.
Main Results:
- Overall five-year survival was 75%.
- Patients with invasive cranial parameningeal disease had a higher recurrence rate (80%).
- Prophylactic cranial irradiation in high-risk patients significantly reduced meningeal relapse (0% vs. 11% in non-invasive cases).
Conclusions:
- Pediatric head and neck soft-tissue sarcomas without skull base invasion are generally curable.
- CT scans are vital for accurate staging of these tumors.
- Early cranial irradiation may be a key strategy to prevent meningeal disease in children with invasive cranial parameningeal sarcoma.
Abstract:
Thirty-two children aged three months to 17 years (median six years) were diagnosed with soft-tissue sarcoma of the head and neck and treated at the Children's Hospital of Philadelphia and the Hospital of the University of Pennsylvania from 1971 to 1981. Thirty-one received chemotherapy and all received radiation therapy (RT). Twenty-five patients had pre-treatment computed tomography (CT) scans, which were used for staging and treatment planning. Doses of radiation therapy ranged from 3000 to 7300 rad to the primary tumor (median 5000 rad). The overall five-year survival of the entire group of 32 patients was 75%. Ten of the 32 patients had invasive cranial parameningeal disease as demonstrated by bony erosion at the skull base, seen on CT in eight and plain radiographs in two patients. Eight of these 10 patients have developed recurrent sarcoma: four in the meninges, two locally, one regionally and one distantly. Five of these 10 children with invasive cranial parameningeal sarcoma received 3000 rad of prophylactic cranial irradiation, begun within the first 12 days of chemotherapy, and none developed meningeal disease. In contrast, only one of the 22 patients without invasive cranial parameningeal disease has relapsed (local recurrence). The data suggest that soft-tissue sarcomas of the head and neck in children without invasion into the base of the skull (invasive cranial parameningeal disease) are usually cured. CT scans are essential for staging. Patients with invasion of the base of the skull may be protected from meningeal relapse by early cranial irradiation, although they still are at high risk for relapse in other sites.