nasal cleft
Introduction
Introduction The nasal fissure is a spheroid or a lateral process that occurs in the face of the embryo during the development of the embryo. The two globular processes differentiated at the lower end of the body are not deformed by the normal process of fusion to the left and right sides of the midline. The degree of malformation is milder, which is characterized by a small nose and a widening of the tip of the ankle. There is a grooved indentation in the middle, the distance between the two nostrils is increased, and the alar cartilage and the nasal cartilage are displaced outward. The degree is heavier, the two nostrils Far away, the lower part of the nose completely split into two more symmetrical halves on both sides. The nasal bridge is wide and flat, showing a widened distance. Intranasal examination shows that the nasal septum is thickened or double septum, and the nasal bones are not separated. Common diseases such as nasal rhizomes are congenital malformations of the outer nose, rosacea and so on.
Cause
Cause
The nasal fissure usually has a groove between the bilateral or unilateral nostrils, located in the middle or to the left or right. During the 1st to 7th week of embryonic development, the nasal or lateral processes of the facial surface and the two globular processes differentiated at the lower end of the nose are not merged in the middle and left sides of the midline. The deformity is formed. Common diseases such as nasal fissures, such as congenital malformations of the outer nose, rosacea and other diseases can cause nasal cracks.
Examine
an examination
Related inspection
External nose examination nasal examination
Therefore, clinically, patients with nasal fissure should be examined:
First, physical examination
Taking a medical history gives us a first impression and revelation, and also guides us to a concept of the nature of the disease.
Second, laboratory inspection
Laboratory examinations must be summarized and analyzed based on objective data learned from medical history and physical examination, from which several diagnostic possibilities may be proposed, and further consideration should be given to those examinations to confirm the diagnosis.
Diagnosis
Differential diagnosis
The nasal fissure needs to be distinguished from the saddle nose.
Nasal fissure deformity, often with a wide distance, is a congenital malformation.
The saddle nose is commonly known as the collapsed bridge of the nose. It refers to the lower nose than the normal height and the lower back of the nose. However, the tip of the nose is saddle-shaped. The saddle nose is caused by trauma and infection, and it is also seen in congenital malformations.
The nasal fissure is a spheroid or a lateral process that occurs in the face of the embryo during the development of the embryo. The two globular processes differentiated at the lower end of the body are not deformed by the normal process of fusion to the left and right sides of the midline. The degree of deformity is lighter, which is characterized by a small nose and a widening of the tip of the ankle. There is a grooved indentation in the middle, the distance between the two nostrils is increased, and the alar cartilage and the nasal cartilage are displaced outward. The degree is heavier, the two nostrils Far away, the lower part of the nose completely split into two more symmetrical halves on both sides. The nasal bridge is wide and flat, showing a widened distance. Intranasal examination shows that the nasal septum is thickened or double septum, and the nasal bones are not separated. Common diseases such as nasal nose, congenital malformation, rosacea and so on.
