Teeth in the maxillary sinus--imaging and management.

Purpose: To evaluate the images obtained by CT in diagnosis and treatment plan of teeth in the maxillary sinus.

Methods: Twelve patients with teeth in the maxillary sinus were studied by plain film radiography (PFR) and by CT with a dental software programme, which displays multiple panoramic and cross-sectional views of the mandible and maxilla. The three-dimensional morphology of the tooth, its inclination, proximity to the sinus wall, surgical planning and prediction of prognosis and complications were estimated on both PFR and on CT scans and scored.

Intraoperative herniation of a tracheostomy tube cuff.

A case of intraoperative tracheostomy tube obstruction is reported. The clinical features and the chain of events leading to the diagnosis of cuff herniation are presented. The different mechanisms of herniation are discussed.

[Latent, non-suppurative mastoiditis. Apropos of 62 cases].

The term masked mastoiditis defines a subclinical infectious inflammatory process of the mucosal lining and bony structures of the mastoid air cells with an intact tympanic membrane. The disease follows an apparently well treated recent acute otitis media. Probably due to an anaerobic colonizing flora, the developing bone infection is of low grade without pus formation.

[Malignant lymphomas of the head and neck].

Review of 122 head and neck lymphomas diagnosed between 1976 and 1992 revealed 40 extranodal lymphomas. In 30 of them follow-up was available. We review the demographic, clinical, histological and immunohistochemical features of the 30 extranodal lymphomas according to site of origin.