OBJECTIVES: This study reviews the published outcomes regarding sinonasal undifferentiated carcinoma (SNUC) since the initial description in 1986. This article attempts to (1) understand and better describe the benefit and survival advantages associated with using radiation, chemotherapy, and surgical treatment and (2) support the recommendations of a treatment regimen with current available data in the literature. DATA SOURCES: Published English-language literature. REVIEW METHODS: A PubMed search for articles related to SNUC, along with the bibliographies of those articles to avoid missing articles. All articles were examined for an independent patient data meta-analysis. Thirty studies with 167 cases from 1986 to October 2009 were identified. Demographics, disease extent, treatment, follow-up, and survival were analyzed. Patient cohorts mirroring Kadish staging were created. Kaplan-Meier curves were constructed. RESULTS: Follow-up range was 1 to 195 months (mean 23.4 months, median 15 months). At last follow-up, 26.3% of patients were alive with no evidence of disease, 21.0% were alive with disease, and 52.7% were dead of disease. The use of surgery was found to be the best single modality, but chemotherapy and radiation were important as adjuncts in extensive and aggressive disease. The presence of neck metastases was a poor prognostic sign. CONCLUSION: This study, containing the largest pool of SNUC patients, confirms a poor overall prognosis. The data suggest that the optimal treatment should include surgery, with radiation and/or chemotherapy as adjunct treatments. Neck disease in advanced local disease is a poor prognostic sign and merits aggressive treatment with multimodality therapy.
OBJECTIVES: This study reviews the published outcomes regarding sinonasal undifferentiated carcinoma (SNUC) since the initial description in 1986. This article attempts to (1) understand and better describe the benefit and survival advantages associated with using radiation, chemotherapy, and surgical treatment and (2) support the recommendations of a treatment regimen with current available data in the literature. DATA SOURCES: Published English-language literature. REVIEW METHODS: A PubMed search for articles related to SNUC, along with the bibliographies of those articles to avoid missing articles. All articles were examined for an independent patient data meta-analysis. Thirty studies with 167 cases from 1986 to October 2009 were identified. Demographics, disease extent, treatment, follow-up, and survival were analyzed. Patient cohorts mirroring Kadish staging were created. Kaplan-Meier curves were constructed. RESULTS: Follow-up range was 1 to 195 months (mean 23.4 months, median 15 months). At last follow-up, 26.3% of patients were alive with no evidence of disease, 21.0% were alive with disease, and 52.7% were dead of disease. The use of surgery was found to be the best single modality, but chemotherapy and radiation were important as adjuncts in extensive and aggressive disease. The presence of neck metastases was a poor prognostic sign. CONCLUSION: This study, containing the largest pool of SNUC patients, confirms a poor overall prognosis. The data suggest that the optimal treatment should include surgery, with radiation and/or chemotherapy as adjunct treatments. Neck disease in advanced local disease is a poor prognostic sign and merits aggressive treatment with multimodality therapy.
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