Objectives Sinonasal squamous cell carcinomas are rare and aggressive tumors. Curative therapy includes surgery and radiotherapy, with high risk for local morbidity and impaired quality of life. The objective of this study was to analyze a large cohort of patients with sinonasal squamous cell carcinoma on treatment morbidity and oncological outcome. Methods Patients with sinonasal squamous cell carcinoma (n = 75) treated at a tertiary referral center between 2008 and 2019 were identified. In patients with curative treatment intent (n = 70), a chart review and analysis on patient and tumor characteristics, morbidity, and oncological outcome was performed. Results Mean follow-up was 59 months. Primary curative therapy was surgery alone (n = 18), surgery with radiation (n = 25), and primary (chemo)radiation (n = 27). Forty-two (60%) patients suffered from treatment-related morbidity; most frequent symptoms were dry nasal mucosa (20%), nasal obstruction (14.3%), and vision impairment or loss (11.5%). Patients with early disease had less morbidity (51.4 vs 71.1%; P = 0.09), a lower recurrence rate (27% vs. 48.5%; P = 0.08), and better overall survival (92.5% vs. 71.1%; P = 0.01). Conclusion Treatment-related morbidity is common after curative treatment of sinonasal squamous cell carcinomas. Early disease is beneficial in terms of occurrence and severity as multimodal treatment and recurrence can more likely be avoided.
Background To assess a large patient cohort with sinonasal malignancies focusing on regional involvement, recurrence and oncological outcome. Methods Patients (n = 144) with malignant tumors of the nasal cavity and paranasal sinuses were treated at our tertiary referral center between 2008 and 2019. A chart review on patient and tumor characteristics, treatment and long-term outcome was performed. Results Most frequent histological types were squamous cell carcinoma (SCC) (n = 74), adenocarcinoma (n = 24) and mucosal melanoma (n = 18). Primary therapy was surgery in 66% of patients (n = 95) of which 65.8% (n = 66) received adjuvant radiotherapy. Twenty patients (13.8%) were initially staged as cN + and in seven cases, pN + status was histopathologically confirmed. Fifty-six of 130 patients (43.1%) had a relapse after curative intended therapy, including nine loco-regional (6.9%) and seven isolated regional recurrences (5.4%). Twelve of these 16 patients with (loco-)regional recurrence had SCC. Adenoid cystic carcinoma (87.5%) and SCC (65.3%) showed the best long-term overall survival. Conclusions Regional involvement and regional recurrence are scarce. Because of rarity and heterogeneity, evidence on therapeutic management is sparse resulting in the lack of clinical guidelines. Graphical Abstract
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