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The danger triangle of the face consists of the area from the corners of the mouth to the bridge of the nose, including the nose and maxilla. [1] [2]: 345–346 Due to the special nature of the blood supply to the human nose and surrounding area, it is possible for retrograde infection from the nasal area to spread to the brain, causing cavernous sinus thrombosis, meningitis, or brain abscess.
to create an artificial passage into the maxillary sinus through the nose; puncture medial wall of inferior meatuses Tilly's antral bur: to enlarge the artificial passage into the maxillary sinus through the nose made by the harpoon trochar; dilate and smoothen the antrostomy opening Freer's double-ended mucoperichondrium elevator
Nosebleeds can be a sign of cancer in the sinus area, which is rare, or tumors starting at the base of the brain, such as meningioma. Due to the sensitive location, nosebleeds caused by tumors are typically associated with other symptoms, such as hearing or vision problems. [13] Traumatic. Anatomical deformities (e.g. septal spurs)
The pressure difference causes the mucosal lining of the sinuses to become swollen and submucosal bleeding follows with further difficulties ventilating the sinus, especially if the orifices are involved. Ultimately fluid or blood will fill the space. In most cases of sinus barotrauma, localized pain to the frontal area is the predominant symptom.
Nasal septal hematoma is a condition affecting the nasal septum. [1] It can be associated with trauma. [2]A septal hematoma is blood that collects in the space between the septal cartilage and the overlying perichondrium (a cross section of the cartilaginous portion of the nasal septum).
Cavernous sinus thrombosis (CST) is the formation of a blood clot within the cavernous sinus, a cavity at the base of the brain which drains deoxygenated blood from the brain back to the heart. This is a rare disorder and can be of two types–septic cavernous thrombosis and aseptic cavernous thrombosis. [ 1 ]
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Complications from endoscopic sinus surgery are rare, but can include bleeding and damage to other structures in the area including the eye or brain. [21] Many physicians recommend a course of oral steroids prior to surgery to reduce mucosal inflammation, decrease bleeding during surgery, and help with visualization of the polyps. [12]