In autopsy series, it was found 5–86 % of cases overall (Bonvini et al. 2008; Canyigit et al. 2009; Ferreira et al. 1991; Lazoura et al. 2010; Mohlenkamp et al. 2002; Ozbag et al. 2002; Ozbag and Kervancioglu 2004).