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Nasopharyngeal carcinoma in childhood and adolescence.
Medical and Pediatric Oncology 1998 December
BACKGROUND: This study reviews the authors' experience from 1979 through 1996 in the management and outcome of 56 patients with nasopharyngeal carcinoma who were under 20 years of age.
PROCEDURE: There were 33 males and 23 females, their ages ranging from 7 to 19 years (median: 16 years). Forty patients had World Health Organization type III carcinomas, 16 had T4 tumors, 41 had metastatic cervical lymph nodes, and 50 were at stage III or stage IV. Thirty-two patients were treated with radiation therapy alone and 24 with the addition of chemotherapy. Cumulative radiation dose to the primary tumor ranged from 18 to 70 Gy (median: 66 Gy) and radiation dose to metastatic cervical lymph nodes ranged from 18 to 70 Gy (median: 66 Gy).
RESULTS: Follow-up ranged from 0.1 to 16.8 years (mean: 9 years). Locoregional tumoral complete response was achieved in 49 patients. Locoregional tumoral failure was observed in 12 patients and systemic failure in 11. Overall, locoregional failure-free, metastases-free, and disease-free survival rates at 5 years were 49%, 62%, 79%, and 47%, respectively, for the entire group of patients, 42%, 61%, 72%, and 42%, respectively, for patients treated with radiation therapy alone, and 58%, 63%, 87%, and 54%, respectively, for patients treated with the addition of chemotherapy. Advanced T-stage and lower radiation doses worsened locoregional failure-free survival, whereas advanced N-stage and exclusion of chemotherapy worsened metastases-free survival.
CONCLUSIONS: In children and adolescents with nasopharyngeal carcinoma, radiation therapy alone results in an improved locoregional tumoral response rate and a reduced locoregional tumoral failure rate at higher radiation doses, while the addition of chemotherapy results in a reduced systemic failure rate.
PROCEDURE: There were 33 males and 23 females, their ages ranging from 7 to 19 years (median: 16 years). Forty patients had World Health Organization type III carcinomas, 16 had T4 tumors, 41 had metastatic cervical lymph nodes, and 50 were at stage III or stage IV. Thirty-two patients were treated with radiation therapy alone and 24 with the addition of chemotherapy. Cumulative radiation dose to the primary tumor ranged from 18 to 70 Gy (median: 66 Gy) and radiation dose to metastatic cervical lymph nodes ranged from 18 to 70 Gy (median: 66 Gy).
RESULTS: Follow-up ranged from 0.1 to 16.8 years (mean: 9 years). Locoregional tumoral complete response was achieved in 49 patients. Locoregional tumoral failure was observed in 12 patients and systemic failure in 11. Overall, locoregional failure-free, metastases-free, and disease-free survival rates at 5 years were 49%, 62%, 79%, and 47%, respectively, for the entire group of patients, 42%, 61%, 72%, and 42%, respectively, for patients treated with radiation therapy alone, and 58%, 63%, 87%, and 54%, respectively, for patients treated with the addition of chemotherapy. Advanced T-stage and lower radiation doses worsened locoregional failure-free survival, whereas advanced N-stage and exclusion of chemotherapy worsened metastases-free survival.
CONCLUSIONS: In children and adolescents with nasopharyngeal carcinoma, radiation therapy alone results in an improved locoregional tumoral response rate and a reduced locoregional tumoral failure rate at higher radiation doses, while the addition of chemotherapy results in a reduced systemic failure rate.
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