Apart from CRC, various authors have found significantly elevated AAT serum levels in subjects with a range of cancers, including lung [25-30], liver [31,32], pancreas [33], prostate [34], cervix [35], ovary [36,37], breast [38], Hodgkin’s lymphoma [39], larynx and other head and neck carcinomas [40,41]. This evidence concerns the gene SERPINA1 and head and neck carcinoma.