KDM1A and head and neck squamous cell carcinoma: The correlation of LSD1 expression with the N stage that was shown for HNSCC in general, with higher N stages having higher LSD1 expression levels, could also be seen in SCC of the hypopharynx and p16 positive SCC of the oropharynx when analyzed separately (p = 0.021 and p = 0.006, respectively).