In this study, the surgical treatment of an obstruction in the thoracal region of the oesophagus, due to the swallowing of a bone, in a 2-year-old mixed breed dog and the stenosis developing in the post-operative period have been discussed. The stenosis, which developed following removal of the bone via thoracal oesophagotomy, was treated conservatively with the regular use of a muscle relaxing agent (diazepam) and application of a special catheter, after which the animal was restored to good heath.