CD1A and neoplasm: Dendritic Cell density, using a variety of markers including CD1a, has been reported to correlate with survival in a range of human tumour types including lung (Furukawa et al, 1985; Zeid and Muller, 1993), colon (Ambe et al, 1989), gastric (Tsujitani et al, 1987), nasopharyngeal (Gallo et al, 1991a; laryngeal (Gallo et al, 1991b)) and tongue carcinomas (Goldman et al, 1998).