Other human tumour types have also been reported to harbour HER‐2 mutations, including head and neck cancers, bladder cancers, gastric cancers, ovarian cancers, hepatic cancers 6, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21. The gene discussed is ERBB2; the disease is urinary bladder carcinoma.