Target coverage and local recurrences after radiotherapy for sinonasal cancer in Denmark 2008-2015. A DAHANCA study.

Purpose: The study aimed to investigate the pattern of failure and describe compromises in the definition and coverage of the target for patients treated with curatively intended radiotherapy (RT) for sinonasal cancer (SNC).

Methods And Material: Patients treated with curatively intended RT in 2008-2015 in Denmark for SNC were eligible for the retrospective cohort study. Information regarding diagnosis and treatment was retrieved from the national database of the Danish Head and Neck Cancer Group (DAHANCA).

Nasal vestibule squamous cell carcinoma: a population-based cohort study from DAHANCA.

Background: Cancer of the nasal vestibule is a rare type of malignancy dominated by squamous cell carcinoma (SCC), and with poor survival. The treatment is either radiotherapy, surgery or a combination of both. Previous studies have shown a 5-year disease-specific survival of 74% and overall survival (OS) of 50%.

Sinonasal cancer in Denmark 2008-2015: a population-based phase-4 cohort study from DAHANCA.

Background: Sinonasal cancer is considered a rare disease with poor survival. Its treatment has changed profoundly in recent years, primarily following the introduction of intensity-modulated radiation therapy (IMRT) and minimally invasive endoscopic surgery. Danish national guidelines on treatment of patients diagnosed with sinonasal carcinoma were introduced in 2007.