“…Systems for categorizing [Holden and Hart, 1983;Byrne et al, 2000;Woelfer et al, 2001;Alborzi et al, 2002;Airoldi et al, 2005;Braun et al, 2005;Jayasinghe et al, 2005;Ghi et al, 2009;Gubbini et al, 2009;Bermejo et al, 2010]. The newer systems reflect the many variations of M€ ullerian development [Falls, 1956;Holmes, 1956;Jones, 1981;Woelfer et al, 2001;Lev-Toaff et al, 2003;Rackow and Arici, 2007;Ghi et al, 2009;Gubbini et al, 2009]. Two-thirds of these 33 cases were ascertained after 1990 when ultrasound became readily available.…”