Etiology Nasal polyps are benign pedunculated tumors formed from edematous, usually chronically inflamed nasal mucosa. They commonly arise from the ethmoidal sinus and occur in the middle meatus. Occasionally they appear within the maxillary antrum and can extend to the…
Tumors, septal perforations, and other acquired abnormalities of the nose and paranasal sinuses can manifest with epistaxis. Midface trauma with a nasal or facial fracture may also be accompanied by epistaxis. Trauma to the nose can cause a septal hematoma;…
Normal Newborn Nose In contrast to children and adults who preferentially breathe through their nose unless nasal obstruction interferes, most newborn infants are obligate nasal breathers. Significant nasal obstruction presenting at birth, such as choanal atresia, may be a life-threatening…