Nasal vestibular cyst

Introduction Nasal Vestibuler Cyst is a cyst located in the soft tissue of the maxillary alveolar bone under the skin of the nasal vestibule. Slow growth, early asymptomatic, until the cyst grows up, one side of the nose attached, the nasal vestibule or the outer edge of the pear-shaped hole. The wall of the nasal vestibular cyst is generally composed of connective tissue containing elastic fibers and many reticulated blood vessels, which are tough and elastic. There is a sense of expansion. Such as secondary infection, causing enlargement and pain. Local examination and combined palpation of the oral vestibule and nasal vestibule are helpful for diagnosis. Treatment is surgical resection.

Cause

At present, the main doctrine is still the theory of glandular retention and facial fissure. Because many scholars believe that it comes from the fusion of spheroidal processes and maxillary processes, theoretically consistent with the maxillary process or cleft lip and palate cysts, it has also been called the spherical mastoid cyst.

The nasal vestibular cyst is a type of facial fissure cyst. The so-called facial fissure cyst refers to various congenital cysts that occur in the nasal and nasal soft tissues, bone tissues or bone holes. There are two main theories about its causes: the glandular retention theory and the face crack theory, and the latter are dominant.

Glandular retention theory

Because the mucosal glandular duct of the nasal cavity is blocked for various reasons, the glandular secretions are retained as cysts, so it is called a retention cyst.

Face crack theory

During the embryonic period, embryonic epithelial remnants are formed in the fissures formed by the development of the maxillary processes, the medial nasal processes, and the lateral nasal processes, and the formation of facial fissure cysts.

Although such cysts begin at the fissure, they often invade the maxillary sinus, nasal cavity, maxillary alveolar process and ankle after growth or development. Early multi-injury cysts develop slowly and are asymptomatic. When the cyst is enlarged and the deformity is revealed, even when there is a secondary infection, the patient comes to the doctor.

an examination

Check the signs:

One finger with gloves or finger cots is placed at the corresponding oral vestibule of the upper lip, and the other finger is placed in the nasal vestibule. The joint palpation during the walk can be soft, elastic, fluctuating, and movable. Painful hemispherical cystic mass. If you have an infection, you may have tenderness.

Auxiliary inspection:

(1) Puncture examination

Can be extracted transparent, translucent or turbid, such as honey-like liquid, mostly without cholesterol crystals.

(2) Imaging examination

X-ray plain film shows a shallow and even localized shadow at the bottom of the pear-shaped hole, without bone and upper lesions. Intracapsular angiography can show the size, shape and location of the cyst. CT examination showed a circular soft tissue shadow at the bottom of the pear-shaped hole.

Differential diagnosis

Differential diagnosis:

Vestibitis of nose is a diffuse inflammation of the skin of nasal vestibulitis. The cause is often digging nose, acute, chronic rhinitis and sinusitis, allergic reaction or nasal foreign body (more common in children) secretion stimulation, long-term work in dust (such as cement, asbestos, fur, tobacco, etc.), easy to induce or aggravate The disease.

Nasal vestibular eczema is a kind of skin damage that occurs in the nasal vestibule. It can spread to the skin such as the nose, nose and upper lip. Itching is more common. It is more common in children and can be divided into acute and chronic.

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