Search results
Results From The WOW.Com Content Network
A human skull contains two pterygopalatine fossae—one on the left side, and another on the right side. Each fossa is a cone-shaped paired depression deep to the infratemporal fossa and posterior to the maxilla on each side of the skull, located between the pterygoid process and the maxillary tuberosity close to the apex of the orbit. [1]
Expansion of the cyst causes erosion of the floor of the maxillary sinus. As soon as it enters the maxillary antrum, the expansion rate increases due to available space for expansion. Performing a percussion test by tapping the affected teeth will cause shooting pain. This is often clinically diagnostic of pulpal infection. [citation needed]
Mucous retention cyst in maxillary sinus indicated by the asymmetrical blue lump to the right of the nose. The most common location to find a mucocele is the inner surface of the lower lip. It can also be found on the inner side of the cheek (known as the buccal mucosa), on the anterior ventral tongue, and the floor of the mouth.
Jaw cysts affect around 3.5% of the population. 10 They are more common in males than females at a ratio of 1.6:1 and most people get them between their 40s and 60s. The order of the jaw cysts from most common to least common is; radicular cysts , dentigerous cysts , residual cysts and odontogenic keratocysts .
Other disorders can mimic the appearance of nasal polyps and should be considered if a mass is seen on exam. [16] Examples include encephalocele, glioma, inverted papilloma, and cancer. [10] Early biopsy is recommended for unilateral nasal polyps to rule out more serious conditions such as cancer, inverted papilloma, or fungal sinusitis. [5]
It is the largest air sinus in the body. [1] [3] It has a mean volume of about 10 ml. [1] [verification needed] It is situated within the body of the maxilla, [1] [3] [4] but may extend into its zygomatic and alveolar processes when large.
Clinically, buccal exostoses appear as single, broad-based masses, usually situated bilaterally in the premolar and molar region on the facial surface of the maxillary alveolar bone. [11] The mass is generally smooth although in some cases a sharp, bony prominence may be present resulting in tenderness beneath the mucosa. [ 12 ]
Classic symptoms of sinus disease such as headache, facial pain, purulent nasal discharge or nasolacrimal obstruction [12] may occur when maxillary sinus is involved. According to a study, 45.7 percent of dentigerous cysts involved mandibular third molar. [8] On the other hand, only 2.7 percent of dentigerous cysts involved the maxillary premolar.