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Sphenoid sinus malignancies: a population‐based comprehensive analysis
Author(s) -
Ghosh Ritam,
Dubal Pariket M.,
Chin Oliver Y.,
Patel Tapan D.,
Echanique Kristen A.,
Baredes Soly,
Liu James K.,
Eloy Jean Anderson
Publication year - 2016
Publication title -
international forum of allergy and rhinology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.503
H-Index - 46
eISSN - 2042-6984
pISSN - 2042-6976
DOI - 10.1002/alr.21733
Subject(s) - medicine , incidence (geometry) , sinus (botany) , population , histopathology , cancer , epidemiology , pathology , gastroenterology , oncology , botany , physics , environmental health , optics , biology , genus
Background Sinonasal malignancies are rare, representing less than 1% of all cancers, with the sphenoid sinus accounting for 1% to 2% of these cases. Sphenoid sinus malignancies exhibit very poor outcomes. There is a paucity of literature describing their histopathological features, incidence trends, treatment, and survival. We seek to elucidate these factors using a national population‐based resource. Methods The Surveillance, Epidemiology, and End Results (SEER) database was used to identify malignant sphenoid sinus tumors. The results were analyzed for demographics, incidence, and clinicopathologic trends. Survival was calculated using Kaplan‐Meier analysis. Results The search identified 472 cases. The mean and median age at diagnosis was 60.0 years. Males represented 54.9% of cases. By race/ethnicity, 82.4% were white and 8.5% were black. The four most common histopathologies were squamous cell neoplasms (29.4%), adenocarcinomas (14.4%), non‐Hodgkin's mature B‐cell lymphomas (13.1%), and unspecified epithelial neoplasms (11.0%). The overall incidence from 2000 to 2012 was 0.030 per 100,000. Kaplan‐Meier analysis demonstrated an overall 5‐year disease‐specific survival (DSS) of 48.1%. Of the most common histopathological subtypes, 5‐year DSS was best for mature B‐cell NHL (64.0%) and worst for unspecified epithelial neoplasms (25.6%). Conclusion Sphenoid sinus malignancies are rare, with high prevalence in white males. The most common histopathology is squamous cell neoplasms. They exhibit significant locoregional extension. Of the common sphenoid sinus malignant subtypes, 5‐year DSS is best for mature B‐cell NHL and worst for unspecified epithelial neoplasms.

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