CDKN2A and angiosarcoma: Specific aberrations that recur in p16INK4a-repressed cell lines and are also observed in angiosarcoma include monosomy 13, loss of the Y chromosome, rearrangements involving 17p, and trisomies 20 and 11 (Mandahl et al., 1990; Kindblom et al., 1991; Gil-Benso et al., 1994; Cerilli et al., 1998; Schuborg et al., 1998; Wong et al., 2001; Zu et al., 2001; Baumhoer et al., 2005; Tsarouha et al., 2006; Wen et al., 2006).