To confirm the clinical observations, DNA from these 7xx CTVTs was analyzed by qPCR to measure the LINE-Myc insertion, a hallmark of this tumor (Katzir et al., 1985), as well as a region of MHC class II DLA DQA-1 shared between CTVT and host and a region of DLA DQA-1 specific for CTVT (Murgia et al., 2006). Here, MYC is linked to neoplasm.