EXPERIMENTAL SURGERY OF THE NOSE AND SINUSES: III. RESULTS FOLLOWING PARTIAL AND COMPLETE REMOVAL OF THE LINING MUCOUS MEMBRANE FROM THE FRONTAL SINUS OF THE DOG
It is common when operating on the sinus to remove the lining mucous membrane completely. For that reason it is of value to learn how the sinus heals after such a procedure. Considerable interest has been aroused in this subject recently, and discussions show some difference of opinion. It has been commonly believed that sinuses so treated filled with scar more or less completely. Mosher and his co-workers1 and Knowlton and McGregor2 have shown that the mucous membrane regenerates very well in some cases. Semenov and Kistner3 found that regeneration of epithelium was variable. They found that formation of scar was marked after complete removal and sometimes this scar was devoid of epithelial covering. Coates and Ersner4 reported an experiment on a dog in which there was regeneration of epithelium after complete removal. In all probability, when the whole story is known, these apparently paradoxical results will be found to