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Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
Published on: February 6, 2019
Incidence, Treatment, and Survival in Primary Central Nervous System Neuroblastoma
Xiangqi Lu1, Xiaojia Zhang1, Xiangyang Deng1
1Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Background:
Primary central nervous system neuroblastoma (PCNSN) is a rare disease, and its incidence, treatment modalities, and survival remain poorly understood.
Methods:
The SEER (Surveillance Epidemiology and End Results) database was used to identify patients diagnosed with PCNSN from 1973 to 2013. The incidence and survival rates were examined. Clinical features, treatment modalities, and prognosis were also assessed.
Results:
A total of 280 patients with PCNSN were identified, with annual age-adjusted incidence being 0.37 per 1,000,000 persons in 1973 and decreasing to 0.12 in 2013. Neuroblastoma (NBL) (ganglioneuroblastoma vs. NBL; odds ratio [OR], 25.01; P = 0.008) and tumor with distant metastasis (OR, 0.17; P = 0.002) were more likely to receive conservative treatment over surgery, whereas older age (OR, 1.02; P = 0.011) and tumors located in the brain (other nervous system vs. brain: OR, 0.31; P = 0.001) increased the likelihood of receiving combined surgery and radiotherapy over surgery alone. In addition, younger age, ganglioneuroblastoma, and surgery treatment were significantly associated with improved outcomes (all P < 0.05). Furthermore, a nomogram model was established to effectively estimate survival for patients with PCNSN.
Conclusions:
We updated epidemiologic information of PCNSN and showed that age, histologic type, tumor extension, and surgery were independent prognostic factors. Moreover, treatment modalities of these tumors are influenced by patient and tumor characteristics.
