TY - JOUR
T1 - Basaloid nasopharyngeal carcinoma
T2 - A population-based analysis of a rare tumor
AU - Unsal, Aykut A.
AU - Booth, J. Renee
AU - Rossi, Nicholas A.
AU - Byrd, J. Kenneth
AU - Kountakis, Stilianos E.
N1 - Publisher Copyright:
© 2019 The American Laryngological, Rhinological and Otological Society, Inc.
PY - 2019/12/1
Y1 - 2019/12/1
N2 - Objectives: Basaloid nasopharyngeal carcinoma (BNPC) is an extremely rare malignancy with a paucity of cases reported in the literature. This analysis represents the largest cohort of BNPC to date. Study Design: Retrospective population-based analysis. Methods: The Surveillance, Epidemiology, and End Results registry from 2001 to 2015 was utilized to extract a total of 82 cases of BNPC. Data were analyzed for incidence trends, demographic, and tumor characteristics, as well as potential outcome prognosticators. Results: White male patients between the ages of 40 to 79 years were most commonly affected. The incidence was measured at 0.06 per 100 thousand people. The majority of tumors were considered high grade (grade III/IV; 92.2%). At presentation, patients were most commonly advanced stage (American Joint Committee on Cancer [AJCC] stage IV) at 29.3%, followed by AJCC stages II and III (20.7%, respectively). T2 tumors were most common at 28.8%. Cervical node involvement and distant metastasis were measured at 53.7% and 10.4%, respectively. One-year, 5-year, and 10-year disease-specific survival was 87.7%, 60.7%, and 29.8%, respectively. No prognostic factors were identified in this study. Conclusion: Basaloid squamous cell carcinoma represents a histologic subtype of nasopharyngeal carcinoma with excellent short-term outcomes but poor survival at 10 years when compared to conventional squamous cell carcinomas. Level of Evidence: NA Laryngoscope, 129:2727–2732, 2019.
AB - Objectives: Basaloid nasopharyngeal carcinoma (BNPC) is an extremely rare malignancy with a paucity of cases reported in the literature. This analysis represents the largest cohort of BNPC to date. Study Design: Retrospective population-based analysis. Methods: The Surveillance, Epidemiology, and End Results registry from 2001 to 2015 was utilized to extract a total of 82 cases of BNPC. Data were analyzed for incidence trends, demographic, and tumor characteristics, as well as potential outcome prognosticators. Results: White male patients between the ages of 40 to 79 years were most commonly affected. The incidence was measured at 0.06 per 100 thousand people. The majority of tumors were considered high grade (grade III/IV; 92.2%). At presentation, patients were most commonly advanced stage (American Joint Committee on Cancer [AJCC] stage IV) at 29.3%, followed by AJCC stages II and III (20.7%, respectively). T2 tumors were most common at 28.8%. Cervical node involvement and distant metastasis were measured at 53.7% and 10.4%, respectively. One-year, 5-year, and 10-year disease-specific survival was 87.7%, 60.7%, and 29.8%, respectively. No prognostic factors were identified in this study. Conclusion: Basaloid squamous cell carcinoma represents a histologic subtype of nasopharyngeal carcinoma with excellent short-term outcomes but poor survival at 10 years when compared to conventional squamous cell carcinomas. Level of Evidence: NA Laryngoscope, 129:2727–2732, 2019.
KW - Basaloid squamous cell carcinoma
KW - SEER
KW - Surveillance Epidemiology and End Results
KW - basaloid nasopharyngeal carcinoma
KW - disease-specific survival
KW - incidence
KW - population-based
KW - survival
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U2 - 10.1002/lary.27788
DO - 10.1002/lary.27788
M3 - Article
C2 - 30632158
AN - SCOPUS:85059840630
SN - 0023-852X
VL - 129
SP - 2727
EP - 2732
JO - Laryngoscope
JF - Laryngoscope
IS - 12
ER -