What is carcinoma maxilla?

Abstract. Maxillary sinus squamous cell carcinoma is an aggressive tumor, usually diagnosed at an advanced stage and most patients present with very poor prognosis and survival rate. We report a case of the patient who presented with pain and swelling in the left maxillary region.

What is maxillary antrum?

The maxillary sinus, or antrum of Highmore, lies within the body of the maxillary bone and is the largest and first to develop of the paranasal sinuses. The alveolar process of the maxilla supports the dentition and forms the inferior boundary of the sinus.

What is maxillary sinusitis?

Maxillary Sinusitis is the inflammation of the paranasal sinuses caused by a virus, bacteria, or fungus. The infection can also result after an allergic reaction – when the immune system attacks the healthy body cells. This infection may be associated with both bacterial and fungal infections.

What is maxillary polyp?

Antrochoanal polyps (ACP) are benign lesions that arise from the mucosa of the maxillary sinus, grow into the maxillary sinus and reach the choana, and nasal obstruction being their main symptom. It is an interesting model to compare the pathophysiological mechanisms with those of bilateral nasal polyposis (NP).

Why maxillary sinus is most commonly infected?

Maxillary sinusitis is common due to the close anatomic relation of the frontal sinus, anterior ethmoidal sinus and the maxillary teeth, allowing for easy spread of infection.

What is antrum in sinus?

The maxillary sinus (or antrum of Highmore) is a paired pyramid-shaped paranasal sinus within the maxillary bone which drains via the maxillary ostium into the infundibulum, then through hiatus semilunaris into the middle meatus. It is the largest of the paranasal sinuses.

What is antrum in mouth?

Oro-antral communication is an unnatural communication between the oral cavity and the maxillary sinus. These complications occur most commonly during extraction of upper molar and premolar teeth (48%). The major reason is the anatomic proximity or projection of the roots within the maxillary sinus. 1.

What is retention cyst in right maxillary antrum?

A maxillary sinus retention cyst is a lesion that develops on the inside of the wall of the maxillary sinus. They are often dome-shaped, soft masses that usually develop on the bottom of the maxillary sinus. Fortunately, a retention cyst of the maxillary sinus is a benign lesion, or non-cancerous.

What is the treatment for maxillary sinusitis?

Treatment of maxillary sinusitis should primarily consist of restoring the normal milieu within the sinus by antral puncture and lavage. Penicillin V is still the first antibiotic drug of choice, because of its effectiveness in vitro and in vivo.

What is maxillary Infundibulum?

The maxillary sinus ostium drains into the infundibulum which joins the hiatus semilunaris and drains into the middle meatus. The anterior ostiomeatal unit (OMU) is comprised of the frontal sinus ostium, frontal sinus drainage pathway (FSDP), maxillary sinus ostium, infundibulum, and middle meatus.

Which lymph nodes drain maxillary sinus?

The maxillary sinus is thought to be an area with paucity of lymphatic pathways with two main routes of lymphatic drainage: the ipsilateral jugulodigastric nodes and the retropharyngeal nodes.

What is the size of maxillary sinus?

The adult dimensions of the maxillary sinus with an average 34×33×23 mm; and communicates with the posterior part of hiatus semilunaris in middle meatus via an aperture, the maxillary ostium that is 3-6 mm in diameter (12).

What is Haller cells?

Haller’s cells are defined as air cells situated beneath the ethmoid bulla along the roof of the maxillary sinus and the most inferior portion of the lamina papyracea, including air cells located within the ethmoid infundibulum.

What is maxillary tuberosity?

The maxillary tuberosity is the most hind-most (distal) aspect of the upper jaw (maxilla), housing the sockets of the upper wisdom teeth, with its back (posterior) border curving upward and distally.

What is a maxillary ostium?

The maxillary ostium or maxillary hiatus is an opening that forms the drainage channel of the maxillary sinus and is also one of the components of the ostiomeatal unit. It is located posteriorly and medially near the roof of the maxillary sinus measuring approximately 2-4 mm.

What is Bulla Ethmoidalis?

The ethmoid bulla is the largest anterior ethmoid air cell. It is also one of the most consistent air cells in the middle meatus and is therefore a reliable anatomic landmark (Fig. 2.13). It often lacks a posterior wall, which is why it is not called a cell but rather a bony lamella with a large airspace behind it.

What is basal lamella?

The basal lamella of the middle turbinate divides the ethmoid sinuses into anterior and posterior air cells, and it serves as an important landmark during endoscopic sinus surgery. Perforation through the basal lamella can serve as a route of disease spread from the anterior to the posterior ethmo id sinuses .