S100A7 and head and neck squamous cell carcinoma: Tripathi et al have shown that psoriasin is significantly overexpressed in oral leukoplakia lesions with squamous cell hyperplasia or dysplasia as well as in HNSCC, compared to normal tissue.43 Moreover, they show that patients with a nuclear accumulation of psoriasin in HNSCC have a reduced disease‐free survival.43