نتایج جستجو برای: paranasal sinuse
تعداد نتایج: 3527 فیلتر نتایج به سال:
Aspergillosis is becoming an increasingly recognized pathogen in the sinonasal tract. The courses of two patients, one seemingly healthy and one with a terminal malignancy, are reviewed. These patients illustrate the clinical course, difficulties in diagnosis, and management of patients with aspergillosis of the sinonasal tract. Aspergillus is a common endogenous contaminant of the upper respir...
BACKGROUND Neuroendocrine carcinoma (NEC) of the paranasal sinuses is rare, accounting for 5% of sinonasal malignancies. The purpose of this study was to assess prognostic factors and survival rates for sinonasal NEC. METHODS A retrospective review of patients with NEC treated from 1990 to 2004 was performed. Patient demographics, TNM classification, treatment modality, recurrences, and survi...
Nasopharyngeal carcinoma (NPC) may spread to the paranasal sinuses. This retrospective study describes the features of paranasal sinus involvement in NPC on computed tomography (CT) and magnetic resonance imaging (MRI). One hundred and fourteen patients with histologically proven NPC underwent staging with both CT and MRI. Maxillary sinus infiltration was demonstrated on MRI in 10 patients; sph...
Serious infection in the paranasal sinuses may present with symptoms suggestive of neurological disease and thus lead to delay in the diagnosis and subsequent treatment. We present three such cases inwhom the initial diagnoses had been acute optic neuritis, a posterior communicating aneurysm and an intracranial space occupying lesion. The fourth patient had meningitis but the paranasal sinuses ...
Midfacial degloving is a well-known technique for entering the nasal and paranasal cavities, the rhinopharynx and the base of the skull. We report our experience with a modification of midfacial degloving, applied to two patients with extensive bilateral benign tumours in the nasal cavities and the paranasal sinuses. No rhinoplastic procedure is necessary in this modification, and the access to...
Craniofacial osteomas may be located either superficially or intraosseously on any bone of the cranium or face or within a paranasal sinus. Osteomas within the paranasal sinus account for 0.01% to 0.43% of patients; of these, up to 80% occur in the frontal sinus. An osteoma of maxillary sinus is extremely rare. We describe a rare case of osteoma of a 56-year-old Asian woman in the maxillary sinus.
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