One hundred twenty-eight patients were examined prospectively to determine the significance of mucosal thickening seen in the paranasal sinuses during routine MR imaging of the brain. On the basis of responses to a questionnaire, each patient was categorized as symptomatic (n = 60) or asymptomatic (n = 68) for paranasal sinus disease. Patients were categorized further on the basis of the maxima...

UNLABELLED Paranasal sinuses development mechanisms are not well known. Nasal air flow, according to one of the proposed theories, would be fundamental to the growth and healthy development of paranasal sinuses. AIM The aim of this study was to evaluate the maxillary sinus growth and health in the presence and absence of postnasal air flow through a unique model. MATERIALS AND METHODS Retro...

Iatrogenic foreign bodies of the paranasal sinuses are extremely rare and, as a rule, during medical procedures. In this clinical case, fracture needle for puncture maxillary sinus required surgical treatment.

Schwannomas of the paranasal sinus are uncommon. Less than 4% of schwannomas involve the nasal cavity and paranasal sinuses, even less in the pediatric age group. A case of schwannoma arising in maxillary sinus in a 2.5-year-old Chinese boy is reported. The basis for discussion of this case is the exceptional rarity of sinonasal schwannoma in pediatric patients.

Adenocarcinoma of the nose and paranasal sinuses has been associated with occupational exposure to wood and leather dust. Strong evidence has been found for such an association in Florence, Italy, from 1963 to 1977. Sixty-nine cases of primary cancer of the nose and paranasal sinuses were identified from hospital records. There were 13 cases of adenocarcinoma, 11 of which were successfully trac...

Empirical antibiotics constitute the cornerstone of medical therapy for chronic sinusitis due to difficulties of obtaining cultures from the paranasal sinuses. Indirect isolation of the pathogenic microorganisms outside the paranasal sinuses with a non-invasive method may enable administration of specific antibiotics. In this prospective study, we obtained cultures from the middle meatus and et...

Two cases of non-invasive aspergillosis of the nose and paranasal sinuses are described. The first presented with left proptosis and ophthalmoplegia. Imaging and histology showed a maxillary sinus aspergilloma. The second case presented as a compressive optic neuropathy and histology showed allergic aspergillus sinusitis. The pathological distinction between invasive and non-invasive forms of a...

Introduction Foreign bodies are quite rarely encountered in the paranasal sinuses. In the literature, intracranial foreign bodies are usually observed in the orbital and frontal sinuses and nasal region (1, 2). Garces and Norris (3) reported that 70% of these foreign bodies usually appeared after maxillofacial traumas and 30% appeared during or after dental procedures of maxilla. Foreign bodies...

It is not fully understood why humans possess paranasal sinuses and for many years there has been speculation as to their physiological significance. Much the same uncertainty holds true for the pathophysiology of chronic paranasal sinusitis, a disease which represents a major therapeutic challenge despite recent medical and surgical progress. 3 There are probably several distinct subtypes of c...

The author had reported two princiles in construction and reaction of the lumen organ (middle ear, paranasal sinuses, lung and salivary grand) in the foregoing reports. In this paper an atempted was made to find these principles in the paranasal sinuses. The first principle is as follows; The lumen organ consists of two forms, namely cell form and antrum form. And the organ in which the cell fo...