“…The diagnosis can be conveniently confirmed by barium swallow, although occasionally the radiographs will be normal in patients later found to have the condition. The radiological appearances have already been well described (Andren and Theander, 1956;Eban and Symers, 1959;Marsh, 1959;Weiss and Epstein, 1962;Buckle and Nichol, 1964;Grieve, 1964) and the shaggy and irregular outline of the oesophagus shown in Fig. 1 is characteristic of this condition.…”