نتایج جستجو برای: middle nasal meatus
تعداد نتایج: 198723 فیلتر نتایج به سال:
Partial or total pneumatization of the middle turbinate is called concha bullosa. It's one of the most common anatomic variations of the lateral nasal wall. The exact reason of such pneumatization is not known. It can originate from the frontal recess, middle meatus, sinus lateralis or, less frequently, from the posterior ethmoid cells. Concha bullosa remains usually asymptomatic. However, an e...
Introduction: Nasal polyps are pedunculated, edematous, prolapsed mucosa of the paranasal sinuses. These polyps commonly arise around the ostia of the paranasal sinuses in the middle meatus. Discussion: The commonest sites of polyp formation are the ethmoid sinuses and maxillary sinus. Rarely polyps may also arise from the other paranasal sinuses. Sites in the nasal mucosa other than the parana...
AIM To test the hypothesis according that the receptors located in the nasal fontanels influence the regulation of the tracheobronchial tree vagus tone. METHODS Changes in respiratory parameters (forced expiratory volume in the first second- FEV1 and total resistance- Rt) occurring consequentially to light mechanical nasal stimulation were determined in healthy volunteer, non-smokers using sp...
Introduction Middle nasal turbinate (concha) is one of three or four lateralto-medial extroflexions of the lateral nasal wall: they are the inferior turbinate, whose bony skeleton is an independent bone, and middle, superior and sometime supreme turbinates, whose bony structures are part of the ethmoid bone. Embryogenesis of the last three turbinates is a process induced by active intramural pn...
Antrochoanal polyps are benign lesions originating from the mucosa of the maxillary sinus and gradually prolapse through the medial wall of the maxillary sinus into the nasal cavity increasing in size to the choana and nasopharynx. Surgery is the usual treatment for antrochoanal polyps. We present the case of a 41-year-old woman who presented with a history of a progressive right nasal obstruct...
Carcinosarcoma is a highly malignant tumour exhibiting histological components of both carcinomatous and sarcomatoid elements. Carcinosarcoma is extremely rare in the sinonasal cavity. Due to the rarity and clinical diversity, these neoplasms are often misdiagnosed and pose a challenge in their management. Here we report a 44-year-old man with epistaxis and progressive symptoms of nasal obstru...
BACKGROUND Concha bullosa (CB) is pneumatization of the middle turbinate and one of the most common anatomic variation of the sinonasal region. It is found in about 25% of the population. Middle meatus obstructive syndrome (MMOS) is, usually connected with CB. The main symptoms of this syndrome are headaches, impaired nasal breathing and hyposmia. Headache is the most common symptom and it may ...
Some sinonasal microanatomic variations can leads to chronic sinusitis. These variations are most commonly in middle meatus and narrow the ostiumeatal unit. In this study, we compared microanatomic variations of lateral nasal wall and sinuses between normal cadavers and patients with chronic sinusitis. This comparative-descriptive study was conducted between 50 sinonasal complexes. The results ...
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