Results 281 to 290 of about 47,695 (303)
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Pathophysiology of the Paranasal Sinuses
Acta Oto-Laryngologica, 1977The maxillary ostium is narrower when the subject is recumbent than when sitting. The oxygen content in the sinus is related to the patency of the ostium and to some extent to its size. A 90% gas exchange in the sinus normally requires only 5 minutes. The exchange is faster during nasal than during oral breathing.
B, Drettner, R, Aust
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Imaging of the Paranasal Sinuses
Oral and Maxillofacial Surgery Clinics of North America, 2012Evaluation of the paranasal sinuses is often performed in a purely clinical fashion, without the need for imaging. However, in certain instances imaging may be deemed valuable or even necessary in helping to solve a diagnostic dilemma, confirm a suspected diagnosis, evaluate the extent of a known condition, or assess for an underlying cause of the ...
R Joshua, Dym +2 more
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Anatomy of the Paranasal Sinuses
Otolaryngologic Clinics of North America, 1996This article portrays the anatomy of the ethmoid bone and lateral nasal wall in a detailed, but easily digested form. Understanding the anatomy of the lateral wall of the nose is the cornerstone of competent paranasal sinus surgery.
W E, Davis, J, Templer, D S, Parsons
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Meningioma of the paranasal sinuses
Neuroradiology, 1979Meningiomas originating in the paranasal sinuses are rare. These tumors are thought to arise from embryonal arachnoid nests which were pinched off and left behind during embryonic development. We have described various radiographic findings of two patients with meningioma arising in the paranasal sinuses (frontal sinus origin in a 65-year-old female ...
K F, Lee, J H, Suh, Y E, Lee, R G, Berry
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The Function of the Paranasal Sinuses
Acta Oto-Laryngologica, 1954Considerable speculation has been expressed in the past concerning the function of the paranasal sinuses; it seems desirable and advantageous to reconsider the subject and to determine whether the evidence of comparative anatomy is able to provide an answer.
V. E. Negus, Harley Street
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Meningiomas of the Paranasal Sinuses
American Journal of Rhinology, 2001Extracranial meningiomas are rare tumors, comprising ∼2% of all meningiomas. Previously reported sites include the orbit, parapharyngeal space, and rarely, the paranasal sinuses. A retrospective chart review of patients with meningiomas was performed over the last 25 years, and three patients were identified with meningiomas involving the paranasal ...
R E, Swain +4 more
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Malignancies of the Paranasal Sinuses
Archives of Otolaryngology - Head and Neck Surgery, 1959Malignant disease of the paranasal sinuses is not common. During a period of approximately 25 years only 62 cases have been seen at the University of Chicago Clinics. The series includes only tumors considered to have originated within the sinuses. Tumors of the nose, palate, orbit, skin, or intracranial structures which have invaded the sinuses have ...
W G, HEMENWAY, J R, LINDSAY
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Exostoses of the paranasal sinuses
The Laryngoscope, 2010AbstractWhile bony exostoses of the external auditory canal have long been recognized as a complication of cold‐water swimming, bony exostoses of the paranasal sinuses have not been previously reported. We present an unusual case of multiple exostoses of the paranasal sinuses, which began coincident with nasal irrigation with cold gentamicin solution ...
Jeevan B, Ramakrishnan +3 more
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Cancer of the Paranasal Sinuses
Surgical Clinics of North America, 1986Cancers of the paranasal sinuses, although rare, continue to cause the death of more than half of patients afflicted with them. The use of combined therapy (surgery and irradiation) has effected some improvement in control, particularly with better surgical and radiation techniques.
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Myospherulosis of the Paranasal Sinuses
Otolaryngology–Head and Neck Surgery, 1990D R, Paugh, M J, Sullivan
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