ALCAM and neoplasm: Tavare’ et al. have constructed conjugates to anti-ALCAM immunoglobulin for the purpose of PET (positron emission tomography) imaging and found that different linkers in length for 64Cu-DOTA (1,4,7,10-tetraazacyclo- dodecane-1,4,7,10-tetraacetic acid) delivers diverse tissue tumour profiles of taking up and half-life in vivo [138,139].