[Cystic formations of the maxilla. Case report]

The case of a man, 28, addressed to our ENT-Department complaining of pain and swelling of the left half of the face is presented. After X-Ray and tomographic study the diagnosis of an included tooth inside the maxillary sinus, accompanied by one cyst, is evidenced. In addition a canine tooth as well included on the floor of the nose and under the lower homonyme turbinate, is disclosed. Through sinusal approach, via Caldwell-Luc, are removed the lesions encountered. Then, the AA., attempt to classify the group of several cystic structures of maxillary sitting, aiming at unify the nomenclature of this pathology, and made a brief description of each type.