RESUMO
PURPOSE: Locally-advanced oropharynx (LA-OPSCC) and hypopharynx/larynx (LA-HPLSCC) cancers may be treated with surgical or non-surgical modalities. While survival outcomes are comparable, patterns of disease recurrence are not well established. METHODS: Retrospective review of 98 consecutive patients with LA-OPSCC or LA-HPLSCC treated by either surgery plus adjuvant therapy (S-POAT, n = 48) or chemoradiation (CRT, n = 50). RESULTS: CRT-treated patients had higher recurrence risk (42% vs 14.6%, p = 0.003). This was significant only among LA-OPSCC (p = 0.002) but not LA-HPLSCC patients (p = 0.159). Median time to recurrence in LA-OPSCC was 16.8 vs 11.6 months, and 16.6 vs 15.1 months in LA-HPLSCC, comparing surgically treated and CRT cohorts. Surgically-treated p16-negative LA-OPSCC experienced improved locoregional control than CRT-treated patients (100% vs 12.5%, p = 0.045) and 3-year RFS (83.0% vs 33.3%, p < 0.001). CONCLUSION: Locoregional control and RFS benefit was observed in surgically treated p16 negative LA-OPSCC patients. Locoregional recurrence is the main reason of treatment failure in LA-HNSCC, occurring commonly within the first 2 years post-treatment, regardless of treatment option.
Assuntos
Carcinoma de Células Escamosas , Neoplasias de Cabeça e Pescoço , Neoplasias Orofaríngeas , Humanos , Carcinoma de Células Escamosas de Cabeça e Pescoço/terapia , Recidiva Local de Neoplasia/terapia , Quimiorradioterapia , Neoplasias de Cabeça e Pescoço/terapia , Estudos Retrospectivos , Neoplasias Orofaríngeas/cirurgiaRESUMO
BACKGROUND: SWI/SNF complex-deficient sinonasal carcinomas are rare, genetically distinct, and aggressive entities. METHODS: SMARCB1 and SMARCA4 immunohistochemistry was retrospectively performed on a cohort of undifferentiated, poorly differentiated, and poorly defined sinonasal carcinomas. Survival outcomes were compared between SMARCB1/SMARCA4 (SWI/SNF complex)-deficient and -retained groups. RESULTS: Eight SWI/SNF complex-deficient (six SMARCB1-deficient, two SMARCA4-deficient) cases were identified among 47 patients over 12 years. Triple-modality treatment was more frequently utilized in SWI/SNF complex-deficient carcinomas than in SWI/SNF complex-retained carcinomas (71.4% vs. 11.8%, p = 0.001). After a median follow-up of 21.3 (IQR 9.9-56.0) months, SWI/SNF complex-deficient sinonasal carcinomas showed comparable recurrence rates (57.1% vs. 52.9%, p = 0.839), time-to-recurrence (7.3 [IQR 6.6-8.3] vs. 9.1 [IQR 3.9-17.4] months, p = 0.531), and overall survival (17.7 [IQR 11.8-67.0] vs. 21.6 [IQR 8.9-56.0] months, p = 0.835) compared to SWI/SNF complex-retained sinonasal carcinomas. CONCLUSION: Triple-modality treatment may improve survival in SWI/SNF complex-deficient sinonasal carcinomas.