“…The physical characteristics, the histology, the symptoms, the physical signs, and the methods of pre-operative diagnosis have been discussed by many writers (Straus and Merliss, 1945;Mahaim, 1945;Brewin, 1948Brewin, , 1951Mills and Philpott, 1951 ;Goldberg, Glenn, Dotter, and Steinberg, 1952;Goldberg and Steinberg, 1955;Likoff, Geckeler, and Gregory, 1954), and the literature has been reviewed by Fatti and Reid (1958) and it is not proposed to discuss it here.…”