Sinunasal Squamous Cell Carcinomas (SNSCC) – Updates from the Hamburg nasal cavity and paranasal sinus registry on a little explored tumor entity

Introduction Malignancies of the nasal cavity and paranasal sinuses constitute a heterogeneous group of various entities, with squamous cell carcinomas being the largest subgroup. Due to the rarity of these tumors, there is a lack of clinical studies. Registry studies can contribute to a better understanding of this entity.