Background
Basaloid squamous cell carcinoma (BSCC) is an aggressive laryngeal cancer with high recurrence and metastasis rates. Its rarity complicates diagnosis and optimal treatment selection, underscoring the significance of comprehensive data collection through national cancer registries. Historically, surgical intervention has been the primary approach to management.The RTOG 91-11 randomized trial catalyzed a paradigm shift, prioritizing laryngealpreserving treatments. The study provided evidence for radiotherapy in early-stage disease (stages 1-2) and combined chemoradiotherapy in advanced disease (stages 3-4). Consequently, organ preservation protocols gained traction, maintaining laryngeal anatomy while achieving comparable oncologic outcomes to total laryngectomy. This shift emphasizes exploring multimodal, laryngeal-sparing regimens to optimize quality of life without compromising disease control. However, further research utilizing large databases is needed to elucidate survival outcomes associated with these approaches.
Methods
We used the National Cancer Database to identify patients diagnosed with BSCC of the larynx (ICD-O-3 histology code 8083) between 2004-2019 (Nf1487). General patient characteristics were assessed using descriptive statistics. Survival was evaluated using Kaplan-Meier curves and log-rank tests. Significance was set at p< 0.05.
Results
For early-stage patients, the estimated survival was 93.179 months. Surgery demonstrated the most favorable outcome with a median survival of 100.957 months, significantly higher than non-surgical patients (85.895 months, p=0.028). Survival did not differ between patients who received only chemotherapy (p=0.281), radiation (p=0.326), or chemoradiation (p=0.919) and those received other treatment modalities. In late-stage patients, the estimated survival was 61.993 months. Surgery yielded the most favorable outcome with a median survival of 70.484 months, significantly higher than non-surgical patients (54.153 months, p< 0.001). Patients who received only chemotherapy (p< 0.001), radiation (p< 0.001) and chemoradiation (p=0.24) had a worse survival outcome compared to those who received other treatment modalities.
Conclusions
The study results indicate that surgical resection could potentially improve survival outcomes for patients diagnosed with advanced-stage laryngeal BSCC. Conversely, for those with earlystage BSCC, larynx-preserving treatment modalities such as radiation, chemotherapy or concurrent chemoradiation appear to achieve comparable survival rates to primary surgical management. These results highlight the importance of careful consideration of treatment modalities based on disease staging at initial presentation.
