Mucocele

Introduction Mucinous cysts occur in the lower lip and the ventral side of the tip of the tongue. The cyst is located under the mucosa and covers only a thin layer of mucosa, so it is a translucent, light blue vesicle that resembles a blister. The cyst is easily broken by the bite and flows out of the egg white-like clear viscous liquid, and the cyst disappears. After the rupture healed, it was filled with mucus and formed a cyst again. Generalized mucinous cysts include small salivary gland cysts and sublingual cysts, which are more common salivary adenoma-like lesions. Parotid cysts are divided into two categories: retention and congenital. The former is rare. Benign hypertrophy of salivary glands, also known as salivary gland enlargement or salivary degeneration, is a non-tumor, non-inflammatory, chronic, recurrent, painless, swollen salivary gland disease.

Cause

Oral mucous cysts can be found without obvious causes, often caused by mild trauma to the mucous gland duct rupture, and salivary mucin spilled into the submucosal tissue or lamina propria caused by the disease. Also seen in glandular cheilitis, due to hyperplasia of the lip and mucosa glands and ducts.

an examination

Related inspection

Respiratory mucus-ciliary clearance test for cervical mucus examination

1. Diagnosis based on medical history.

2. The surface is covered only with a thin layer of mucous membrane, so it is a translucent, light blue vesicle that resembles a blister. The texture is soft and flexible.

classification

1, mucinous cyst

Occurs in the lower lip and the ventral side of the tongue. The cyst is located at the end of the year, and the surface is covered with only a thin layer of mucosa, so it is a translucent, light blue vesicle that resembles a blister. The texture is soft and flexible. The cyst is easily broken by the bite and flows out of the egg white-like clear viscous liquid, and the cyst disappears. After the rupture healed, it was filled with mucus and formed a cyst again.

2, sublingual cyst

Common in adolescents, can be divided into 3 categories: 1 simple type: the majority. The cyst is located in the sublingual area and is light purple-blue. Often located on the bottom side of the mouth. A larger cyst can lift the tongue like a "heavy tongue." After the cyst has ruptured due to trauma, it flows out of a thick, slightly yellowish or egg-like liquid, and the cyst temporarily disappears. After the summer, the window heals, the cyst grows up as before; 2 mouth appearance: also known as latent protrusion type. Mainly manifested as submandibular mass, while the fundus cyst is not obvious. The palpation is soft, non-adhesive to the skin and incompressible. 3 dumbbell type: for the above two types of mixing, that is, cystic mass can be seen in the sublingual area of the mouth and the mandibular area outside the mouth.

Differential diagnosis

1, mucinous gland cyst: small transparent small bubble-like mass under the oral mucosa, the bubble content is a thick egg-like liquid; there is a history of partial bite.

2, large parotid cyst: for the site of the disease in the oral and maxillofacial corresponding large parotid gland, showing the swelling and obstruction of the site, the secretion of the catheter is abnormal. The sublingual cyst was puncture and the egg-like viscous fluid was extracted. The submandibular gland and parotid cyst were puncture and the liquid was thin, and the amylase test was positive.

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