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Staging of Head and Neck Cancer
Published in John C Watkinson, Raymond W Clarke, Terry M Jones, Vinidh Paleri, Nicholas White, Tim Woolford, Head & Neck Surgery Plastic Surgery, 2018
The nasopharynx begins anteriorly at the posterior choana and extends along the plane of the airway to the level of the free border of the soft palate. It includes: superior wallposterior wall: from the level of the junction of the hard and soft palates to the superior wall lateral wall: including the fossa of Rosenmullerfloor: superior surface of the soft palate. The margin of the choanal orifices, including the posterior margin of the nasal septum is included with the nasal fossa.
Nasal Septal Perforations
Published in John C Watkinson, Raymond W Clarke, Louise Jayne Clark, Adam J Donne, R James A England, Hisham M Mehanna, Gerald William McGarry, Sean Carrie, Basic Sciences Endocrine Surgery Rhinology, 2018
The nasal fossa is a contaminated area and therefore antibiotic prophylaxis is important. There are no studies as to the ideal length of the course, but the development of sepsis can have a potentially devastating effect on the residual cartilage producing a saddle deformity. Currently, the authors give a 10-day course and supplement this with topical antibacterial ointment.
Comparative Aspects of Nasal Passage Carcinoma in Dogs with Man
Published in Gerd Reznik, Sherman F. Stinson, Nasal Tumors in Animals and Man, 2017
Howard M. Hayes, George P. Wilson
The nasal cavity is composed of two roughly pyramidal spaces (fossa) separated from each other by the nasal septum. These fossae communicate anteriorly with the nares, posteriorly with the nasopharynx, laterally with the maxillary sinus in man and maxillary recess in dog, and superiorly with the sphenoid, ethmoid, and frontal sinuses.16,17 Each nasal fossa is divided into four main air channels by turbinates that develop into a very intricate scroll pattern in the dog;16 generally, the fossa is occupied by three turbinates in man.17 The canine nasal passage is anatomically much more complex than that in man, presumably due to the species-specific olfactory and dietary characteristics. This efficient filtering capability probably explains why the dog has considerably more sinonasal cancer than lung cancer.15
Maxillary mucormycosis and concurrent osteomyelitis in a post-COVID-19 patient with new onset diabetes mellitus
Published in Baylor University Medical Center Proceedings, 2023
Pallak Arora, Geetpriya Kaur, Nutan Tyagi, Madhu K. Nair
A cone-beam computed tomography (CBCT) scan revealed a large area of sequestration with associated osteolysis and rarefaction of the alveolar bone from the region of the right maxillary first premolar across the midline and extending to the region of the left maxillary first molar, with involvement of the anterior hard palate (Figure 1a). Associated areas of erosion and corticomedullary detachment as well as sinus tracts were seen in the bilateral maxillary alveolus (Figure 1b and 1c). Osteolysis was also noted at the junction of the anterior middle third of the palate with erosion involving the floor of the bilateral nasal fossa and base of the bony nasal septum. Discontinuity along the floor of the right maxillary sinus and the medial wall of the left maxillary sinus was noted. Polypoidal mucosal thickening was seen in the left maxillary sinus with sclerosis and thickening of the walls of the sinus (Figure 1d), as well as within the anteroinferior third of the right maxillary sinus. The imaging findings were consistent with extensive antral and maxillary subacute to chronic osteomyelitis.
Current management strategies of congenital nasolacrimal duct obstructions
Published in Expert Review of Ophthalmology, 2021
Silvana Artioli Schellini, Victoria Marques-Fernandez, Roberta Lilian Fernandes Sousa Meneghim, Alicia Galindo-Ferreiro
This technique is also similar to the technique used in adults, except the instruments are more delicate due to the reduced dimensions of the nasal fossa. The middle meatus is reached using a 2.7 mm 0° rigid nasal endoscope. After infiltration of local anesthetic associated with a vasoconstrictor, the lateral nasal mucosa is opened using a sickle knife or a blade, starting from the front of the uncinate process near the maxillary line and moving downward, reaching the periosteum. The frontal process of the maxilla is removed, and then the medial lacrimal sac wall is exposed and opened. The lacrimal sac can be marsupialized or the medial portion of the lacrimal sac can be removed. A stent can be inserted, but it does not improve the success rate (Figure 4A-D).
Invasive Fungal Sinusitis with Ophthalmological Complications: Case Series and Review of the Literature
Published in Neuro-Ophthalmology, 2021
Maëlle Coutel, Thierry Duprez, Caroline Huart, Emilie Wacheul, Antonella Boschi
The pterygopalatine fossa is considered to be the main reservoir for rhino-cerebral mucormycosis after proliferation in the nasal fossa.14 The involvement of the brain and cavernous sinus occurs by way of the orbital apex leading to thrombosis and fatal brain haemorrhage, explaining the high casualty rate of this disease. Therefore, spheno-ethmoidectomy with debridement of the pterygopalatine fossa, with or without maxillectomy, is considered the only definitive method to eradicate the infection.14