Results 11 to 20 of about 44,563 (312)

The bovine paranasal sinuses: Bacterial flora, epithelial expression of nitric oxide and potential role in the in-herd persistence of respiratory disease pathogens. [PDF]

open access: yesPLoS ONE, 2017
The bovine paranasal sinuses are a group of complex cavernous air-filled spaces, lined by respiratory epithelium, the exact function of which is unclear. While lesions affecting these sinuses are occasionally reported in cattle, their microbial flora has
Gerard M Murray   +7 more
doaj   +5 more sources

Xenon-Enhanced Dynamic Dual-Energy CT Is Able to Quantify Sinus Ventilation Using Laminar and Pulsating Air-/Gas Flow Before and After Surgery: A Pilot Study in a Cadaver Model

open access: yesFrontiers in Allergy, 2022
BackgroundChronic rhinosinusitis is a common disease with a significant impact on the quality of life. Topical drug delivery to the paranasal sinuses is not efficient to prevent sinus surgery or expensive biologic treatment in a lot of cases as the ...
Sven Becker   +8 more
doaj   +1 more source

Nitric oxide unravels the enigmatic function of the paranasal sinuses: a review of literature

open access: yesThe Egyptian Journal of Otolaryngology, 2020
Background The physiological functions of the paranasal sinuses are as yet unclear, and it is often assumed that these empty air-filled spaces have no vital function in our body.
Remon Bazak   +3 more
doaj   +1 more source

Nasal decongestants in complex treatment of acute rhinosinusitis in children

open access: yesМедицинский совет, 2013
Doctors have been dealing with inflammatory disease of nose and paranasal sinuses as early as since the XVII century. Rhinosinusitis is a polyethiologic inflammation of nose and paranasal sinuses, accompanied by congestion of secretion and impaired ...
E. P. Karpova, E. E. Vagina
doaj   +1 more source

Normal Computed Tomography and Radiographic Study of the Nasal Cavity and Paranasal Sinuses in Shal Sheep (Ovis arries) [PDF]

open access: yesIranian Journal of Veterinary Surgery, 2023
Understanding anatomical structures from the past to the present has been one of the guidelines for advancing medical and veterinary science worldwide. The lack of comprehensive information on the anatomy of the paranasal sinuses and the Shal sheep nasal
Alireza Vajhi   +6 more
doaj   +1 more source

Metastatic renal cell carcinoma presenting as a paranasal sinus mass: the importance of differential diagnosis [PDF]

open access: yes, 2017
Metastases in the paranasal sinuses are rare; renal cell carcinoma is the most common cancer that metastasizes to this region. We present the case of a patient with a 4-month history of a rapidly growing mass of the nasal pyramid following a nasal trauma,
ALTISSIMI, Giancarlo   +3 more
core   +4 more sources

The Nose and Paranasal Sinuses

open access: yesInternational Journal of Immunopathology and Pharmacology, 2010
The airways should be considered as a functional unit. Indeed, disorders involving the upper respiratory tract (URT) spread to the lower respiratory tract (LRT). Modern functional anatomy divides URT in three, mutually dependent, “junction boxes”: i) the ostio-meatal complex (OMC), ii) the spheno-ethmoidal recess (SER), and iii) the rhinopharynx (RP).
Varricchio A   +4 more
openaire   +3 more sources

Primary chordoma of the ethmoid sinus [PDF]

open access: yes, 2000
Primary chordoma of the paranasal sinuses are extremely rare tumours, with only a small number of cases verified and published in the literature. It appears that only five of these cases involved the ethmoid sinuses either as a primary or by local ...
Badia, L, Loughran, S, Lund, VJ
core   +1 more source

Pan-pneumatocele of Paranasal Sinuses: A Rare Entity

open access: yesIndian Journal of Neurosurgery, 2016
Excessive enlargement of the paranasal sinuses is a rare entity with an uncertain etiology. It usually affects the frontal sinus, although any sinus can be pathologically enlarged.
Sumit Bansal, Ashok Kumar Mahapatra
doaj   +1 more source

Sarcoidosis of the paranasal sinuses

open access: yesEuropean Archives of Oto-Rhino-Laryngology, 2019
Sarcoidosis is a chronic disease, which predominantly affects the lung. Since sinonasal sarcoidosis is rare, little is known about the sarcoidosis manifestation at this site. Therefore, the aim of our study was to detect the prevalence of sinonasal sarcoidosis, its clinical occurrence, diagnosis, and therapy.The database of all patients having visited ...
Thore Thiesler   +8 more
openaire   +4 more sources

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