mucocele of salivary gland

唾液腺粘液嚢胞

WordNet

1. any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream (同)secretory organ, secretor, secreter
2. a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches (同)spit, spittle
3. of or relating to saliva; "salivary gland"

PrepTutorEJDIC

1. 《所有・所属》…『の』,…のものである,…に属する・《材料・要素》…『でできた』,から成る・《部分》…『の』[『中の』] ・《数量・単位・種類を表す名詞に付いて》…の・《原因・動機》…『で』,のために(because of) ・《主格関係》…『の』,による,によって・《目的格関係》…『を』,の・《同格関係》…『という』・《関係・関連》…『についての』[『の』],の点で・《抽象名詞などと共に》…の[性質をもつ] ・《『It is』+『形』+『of』+『名』+『to』 doの形で,ofの後の名詞を意味上の主語として》・《分離》…『から』・《起原・出所》…『から』[『の』](out of) ・《『名』+『of』+『a』(『an』)+『名』の形で》…のような・《『名』+『of』+『mine』(『yours, his』など独立所有格)の形で》…の…・《時》(1)《副詞句を作って》…に《形容詞句を作って》…の・《時刻》《米》…前(to,《米》before)
2. (生物体内の)腺(せん)
3. だ液,つば
4. だ液の;だ液を分泌する
5. OLD French古[代]フランス語

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/07/14 19:14:14」(JST)

wiki en

[Wiki en表示]

Mucous cyst of the oral mucosa
A mucocele on the lower lip.
Classification and external resources
Specialty	oral and maxillofacial surgery
ICD-10	K11.6
ICD-9-CM	527.6,528.9
DiseasesDB	30713
eMedicine	derm/274
MeSH	D009078

Oral mucocele (also termed mucous retention cyst, mucous extravasation cyst, mucous cyst of the oral mucosa, and mucous retention and extravasation phenomena) is a clinical term that refers to two related phenomena:

• Mucus extravasation phenomenon
• Mucus retention cyst

The former is a swelling of connective tissue consisting of a collection of fluid called mucin. This occurs because of a ruptured salivary gland duct usually caused by local trauma (damage), in the case of mucus extravasation phenomenon, and an obstructed or ruptured salivary duct (parotid duct) in the case of a mucus retention cyst. The mucocele has a bluish translucent color, and is more commonly found in children and young adults.

Although the term cyst is often used to refer to these lesions, mucoceles are not strictly speaking true cysts because there is no epithelial lining. Rather, it would be more accurate to classify mucoceles as polyps (i.e. a lump).

Simplistic representation of the formation of mucoceles.

Signs and symptoms

The size of oral mucoceles vary from 1 mm to several centimeters and they usually are slightly transparent with a blue tinge. On palpation, mucoceles may appear fluctuant but can also be firm. Their duration lasts from days to years, and may have recurrent swelling with occasional rupturing of its contents.

Locations

Mucous retention cyst in maxillary sinus

The most common location to find a mucocele is the inner surface of the lower lip. It can also be found on the inner side of the cheek (known as the buccal mucosa), on the anterior ventral tongue, and the floor of the mouth. When found on the floor of the mouth, the mucocele is referred to as a ranula. They are rarely found on the upper lip. As their name suggests they are basically mucus lined cysts and they can also occur in the Paranasal sinuses most commonly the frontal sinuses, the frontoethmoidal region and also in the maxillary sinus. Sphenoid sinus involvement is extremely rare. When the lumen of the vermiform appendix gets blocked due to any factor, again a mucocele can form.

Variations

A variant of a mucocele is found on the palate, retromolar pad, and posterior buccal mucosa. Known as a "superficial mucocele", this type presents as single or multiple vesicles and bursts into an ulcer. Despite healing after a few days, superficial mucoceles recur often in the same location. Other causes of bumps inside lips are, aphthous ulcer, Lipoma, benign tumors of salivary glands, submucous abscess and haemangiomas.

Diagnosis

Histopathologic image of extravasation type mucocele of the lower lip. H & E stain.

Microscopically, mucoceles appears as granulation tissue surrounding mucin. Since inflammation occurs concurrently, neutrophils and foamy histiocytes usually are present.

On a CT scan, a mucocele is fairly homogenous, with an attenuation of about 10-18 Hounsfield units.

Classification

Both mucous retention and extravasation phenomena are classified as salivary gland disorders.

Treatment

Surgical removal of a Mucocele.

Some mucoceles spontaneously resolve on their own after a short time. Others are chronic and require surgical removal. Recurrence may occur, and thus the adjacent salivary gland is excised as a preventive measure.

Several types of procedures are available for the surgical removal of mucoceles. These include laser and minimally-invasive techniques which means recovery times are reduced drastically.

Micro-marsupialization is an alternative procedure to surgical removal. Micro-marsupialization uses silk sutures in the dome of a cyst to allow new epithelialized drainage pathways. It is simpler, less traumatic, and well-tolerated by patients, especially children.

A non-surgical option that may be effective for a small or newly identified mucocele is to rinse the mouth thoroughly with salt water (one tablespoon of salt per cup) four to six times a day for a few days. This may draw out the fluid trapped underneath the skin without further damaging the surrounding tissue. If the mucocele persists, individuals should see a doctor to discuss further treatment.

Smaller cysts may be removed by laser treatment, larger cysts will have to be removed surgically in an operating room.

See also

• Sialocele
• Seroma

External links

• Mucocele on Dermatlas
• Mucocele surgical removal
• Mucocele images

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

• 1. 唾液腺腫瘍：疫学、診断、評価、および病期分類 salivary gland tumors epidemiology diagnosis evaluation and staging
• 2. 小児における口腔軟部組織病変 soft tissue lesions of the oral cavity in children
• 3. 唾液腺腫瘍：限局性疾患の治療 salivary gland tumors treatment of locoregional disease
• 4. 唾石症 salivary gland stones
• 5. シェーグレン症候群の診断および分類 diagnosis and classification of sjogrens syndrome

English Journal

• Epidemiological survey of mucus extravasation phenomenon at an oral pathology referral center during a 43 year period.

• Bezerra TM1, Monteiro BV2, Henriques ÁC3, de Vasconcelos Carvalho M4, Nonaka CF5, da Costa Miguel MC6.
• Brazilian journal of otorhinolaryngology.Braz J Otorhinolaryngol.2016 Sep-Oct;82(5):536-42. doi: 10.1016/j.bjorl.2015.09.013. Epub 2016 Jan 6.
• INTRODUCTION: Mucoceles are common benign pseudocystic lesions of the oral cavity; their main etiological factors are trauma and ductal obstruction. Two histological patterns are found: mucus retention phenomenon (MRP) and mucus extravasation phenomenon (MEP). Mucus extravasation phenomenon is the m
• PMID 26832636

• The Application of Absolute Ethanol in the Treatment of Mucocele of the Glands of Blandin-Nuhn.

• Zhang J1, Wang C.
• The Journal of craniofacial surgery.J Craniofac Surg.2016 Aug 12. [Epub ahead of print]
• Mucocele of the anterior lingual salivary glands is a more common cystic lesion, especially in patients aged less than 20 years. The study is aimed to observe the effect of treatment by injection of absolute ethanol instead of surgery. Fourteen outpatients diagnosed as mucocele of the glands of Blan
• PMID 27526250

• Mucocele of the hard palate in children.

• Abdel-Aziz M1, Khalifa B2, Nassar A2, Kamel A2, Naguib N3, El-Tahan AR4.
• International journal of pediatric otorhinolaryngology.Int J Pediatr Otorhinolaryngol.2016 Jun;85:46-9. doi: 10.1016/j.ijporl.2016.03.007. Epub 2016 Mar 18.
• OBJECTIVE: Mucus retention cyst of the hard palate may result from obstruction of the ducts of the minor salivary glands, and it was defined as a mucocele. Although, the disease is not common in the hard palate, it was previously reported by many authors in the soft palate. The aim of our study was
• PMID 27240495

Japanese Journal

• 難治2症例から考えるガマ腫の治療方針

• 耳鼻咽喉科臨床 105(7), 641-646, 2012-07-01
• NAID 10030773587

• Surgery : First Case of Salivary Mucocele Originating from the Minor Salivary Gland of the Soft Palate in a Dog

• The journal of
• NAID 40019170764

• First Case of Salivary Mucocele Originating from the Minor Salivary Gland of the Soft Palate in a Dog

• Journal of
• NAID 130001032837

Related Links

• Mucocele of salivary gland - RightDiagnosis.com

Mucocele of salivary gland information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Mucocele of salivary gland: Related Topics These medical condition or symptom topics ...

• Salivary Mucocele | ACVS

The only satisfactory treatment for a salivary mucocele is removal of the salivary gland or glands that are involved with the mucocele. (Figure 6) Continued aspiration of a mucocele will not permanently eliminate the problem. It will ...

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★リンクテーブル★

リンク元	「唾液腺粘液嚢胞」
関連記事	「salivary」

「唾液腺粘液嚢胞」

　　[★]

英

ranula, mucocele of salivary gland, mucous cyst of salivary gland

同

ガマ腫、がま腫

関

粘液嚢胞

「salivary」

　　[★]

• 唾液の

関

saliva