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Similarly, in a series of over 400 routine abdominal roentgenograms in healthy persons, large accumulations of gas were not accompanied by feelings of abdominal distress.

The roentgenogram will give accurate information as to the position, and will thus allow a planning of the best method for removal of the foreign body.

Pleural perforation is manifested by the usual signs of pneumothorax, and will be demonstrated in the roentgenogram.

A roentgenogram should always be made in the plane showing the widest spread of the pin.

After removal, the sac is disappointingly small as compared with its previous size in the roentgenogram, which shows it distended with opaque material.