“…In the discussion which ensued a further instance was mentioned by Itzes (1965). T o these may be added 12 cases reported elsewhere by Desmond and Swynnerron (1957); Melamed, Haukohl, and Callan (1960); Singer (1963); Conway (1965); Diethrich and Regan (1965); Gibbon and Ashby (1965); Rhind (1965); Parrish, Sherman, and Moretz (1966); Pulsifer, Jedd, and Van Zandt (1966); and Robinson (1967). The apparent rarity of the condition is, however, disputed by Rhind (1965) who states that he personally has seen over 40 cases.…”