Intrinsic obstruction of the Procter-Livingstone tube.

: Four instances of intrinsic obstruction of a Procter-Livingstone tube inserted for oesophageal carcinoma are described. The exact cause of the blistering is unknown, but it is thought to occur by absorption through the latex. It is suggested that if this complication is found, relief of obstruction may be obtained by perforation of the blister.