Background
Esthesioneuroblastoma (ENB) is a rare cancer of the nasal cavity in children. Radical surgery followed by post-operative radiation is considered the standard of care in adults. A similar approach in children can lead to significant long-term morbidity.
Procedure
A retrospective multi-institutional review of patients <21 years of age diagnosed with ENB between 1990 and 2014 was performed. Clinical features, treatment and outcome were obtained from the medical records.
Results
Twenty-four patients were identified; median age at diagnosis was 14 years (range 0.6 – 20 years). The majority (75%) were female. Headache was the most common presenting symptom, followed by nasal obstruction and epistaxis. Eight patients had Kadish stage B tumors and 16 had Kadish Stage C. Nine patients had metastatic disease. Gross total resection was achieved at diagnosis in eight patients and after neoadjuvant chemotherapy in four patients. Twenty-one patients received radiation therapy (45 Gy – 68.4 Gy). Thirteen patients received neoadjuvant chemotherapy with 84% objective response rate. Seven patients experienced disease progression or relapse; five in central nervous system, one local and one in cervical lymph node. Fifteen patients were alive at last follow-up. The 5-year disease free survival and overall survival were 74% and 73% respectively. Late effects were observed in 78% of long-term survivors. Four patients developed subsequent malignant neoplasms.
Conclusions
Pediatric ENB is a chemosensitive disease. Pre-operative chemotherapy based multimodal approach should be used in patients with advanced stage disease. Radiation therapy is effective for local control but lower doses should be considered in children.