MDK and neoplasm: This rate was consistent with previous immunohistochemical data obtained from other carcinomas, where MK expression had been detected in 32.0–86.3% of tumours (Konishi et al, 1999; Kato et al, 2000a, 2000b; Ren and Zhang, 2006; Kaifi et al, 2007; Ruan et al, 2007).