外耳道ポリビニルアルコール異物例 Removal of Polyvinyl Alcohol from the External Auditory Canal
We report the case of a 6-year-old girl with a small, round-shaped foreign body, composed of polyvinyl alcohol, in her right external auditory canal. This foreign body was originally a component of toy beads with which children are able to make variously shaped objects by sticking them together using water. Polyvinyl alcohol is a water-soluble polymer and is employed as an adhesive agent. In our case, it was not easy to remove it because it had fully adhered to her external auditory canal.<br>It is important to note that this kind of foreign body should not be attempted to be removed by water irrigation, as this would cause it to dissolve and stick to the tissue.
耳鼻咽喉科臨床 101(8), 587-589, 2008-08-01