Reports published in 2014 concerning the head and neck region show that SMARCB1 deficits can be found in sinonasal carcinoma [4-7]; SMARCB1-deficient sinonasal carcinoma was newly described in the 2017 WHO classification of tumors in the nose and sinus region [8]. The gene discussed is SMARCB1; the disease is nasal cavity and paranasal sinus carcinoma.