Abstract
The author reports a case of postoperative buccal cyst which relapsed in ten months after the operation performed by an ophthalmologist, because the disease showed ophthalmic symptoms only. The patient was a man of 27 years of age. He had a radical operation for bilateral sinusitis 12 years ago, and from 3 years ago, he noticed a feeling of pressure on the eyeballs, but he left it untreated until he came to have ocular deviation last year. Then he underwent the operation under the diagnosis of intraorbital tumor, in which removal of wall of the cyst was insufficient and, furthermore, counteropening was not made, and the result was the swelling of bilateral buccal region in ten months after the operation.
This case shows clearly that in operating a postoperative buccal cyst the removal of wall of the cyst and the counteropening is essential.
