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definitions - CYST

cyst (n.)

1.a small anatomically normal sac or bladderlike structure (especially one containing fluid)

2.a closed sac that develops abnormally in some body structure

Cyst (n.)

1.(MeSH)Any fluid-filled closed cavity or sac that is lined by an EPITHELIUM. Cysts can be of normal, abnormal, non-neoplastic, or neoplastic tissues.

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Merriam Webster

CystCyst (sĭst), n. [Gr. ky`stis bladder, bag, pouch, fr. ky`ein to be pregnant. Cf. Cyme.]
1. (Med.) (a) A pouch or sac without opening, usually membranous and containing morbid matter, which is accidentally developed in one of the natural cavities or in the substance of an organ. (b) In old authors, the urinary bladder, or the gall bladder. [Written also cystis.]

2. (Bot.) One of the bladders or air vessels of certain algæ, as of the great kelp of the Pacific, and common rockweeds (Fuci) of our shores. D. C. Eaton.

3. (Zoöl.) (a) A small capsule or sac of the kind in which many immature entozoans exist in the tissues of living animals; also, a similar form in Rotifera, etc. (b) A form assumed by Protozoa in which they become saclike and quiescent. It generally precedes the production of germs. See Encystment.

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definition (more)

definition of Wikipedia

synonyms - CYST

Cyst (n.) (MeSH)

Cysts  (MeSH)

cyst (n.)

blister, sac, vesicle

see also - CYST

cyst (n.)

cystic, encysted, vesicular


-Aneurysmal bone cyst • Arachnoid cyst • Baker's cyst • Bakers cyst • Bartholin's cyst • Bone cyst • Botryoid odontogenic cyst • Branchial cleft cyst • Branchial cyst • Breast cyst • Bronchogenic cyst • Calcifying odontogenic cyst • Central nervous system cyst • Cereal cyst nematode • Chocolate cyst of ovary • Choroid plexus cyst • Colloid cyst • Colloidal Cyst • Corpus luteum cyst • Cutaneous ciliated cyst • Cutaneous columnar cyst • Cyst nematode • Dental cyst • Dentigerous cyst • Dermoid cyst • Developmental cyst • Enteric duplication cyst • Epidermal cyst • Epidermal inclusion cyst • Epidermoid cyst • Eruption cyst • Eruptive vellus hair cyst • Follicular cyst of ovary • Ganglion cyst • Gingival cyst of the adult • Gingival cyst of the newborn • Glandular odontogenic cyst • Globulomaxillary cyst • Gorlin cyst • Infundibular cyst • Internal digestive cyst • Iris cyst • Isthmus-catagen cyst • Keratin cyst • Keratin implantation cyst • Lateral periodontal cyst • Malignant trichilemmal cyst • Median alveolar cyst • Median palatal cyst • Median raphe cyst • Meniscal cyst • Microbial cyst • Moll's gland cyst • Mucous cyst • Mucous cyst of oral mucosa • Mucous retention cyst • Myxoid cyst • Nabothian cyst • Nasolabial cyst • Nasolacrimal duct cyst • Nasopalatine cyst • Omphalomesenteric duct cyst • Ovarian cyst • Periapical cyst • Pilar cyst • Pilonidal cyst • Pineal gland cyst • Potato cyst nematode • Preauricular sinus and cyst • Primordial cyst • Proliferating epidermoid cyst • Proliferating trichilemmal cyst • Radicular cyst • Rathke's cleft cyst • Rice cyst nematode • Sebaceous cyst • Simple sebaceous duct cyst • Soybean cyst nematode • Sudoriferous cyst • Synovial cyst • Tarlov cyst • The Year of the Cyst • Thyroglossal cyst • Traumatic bone cyst • Trichilemmal cyst • Urachal cyst • Verrucous cyst • Vitelline cyst • Vocal fold cyst

analogical dictionary

Wikipedia - see also



Classification and external resources

Micrograph of a mediastinal bronchogenic cyst. H&E stain.
MedlinePlus 003240
MeSH D003560

A cyst is a closed sac, having a distinct membrane and division compared to the nearby tissue. It may contain air, fluids, or semi-solid material. A collection of pus is called an abscess, not a cyst. Once formed, a cyst could go away on its own or may have to be removed through surgery.



  Cystic fibrosis

Despite being described in 1938 as the microscopic appearance of cysts in the pancreas,[5] cystic fibrosis is an example of a genetic disorder whose name is related to fibrosis of the cystic duct and does not involve actual cysts.[6]

  Cystic neoplasm

Most cysts in the body are benign (dysfunctional) tumors, the result of plugged ducts or other natural body outlets for secretions. However sometimes these masses are considered neoplasm:


Treatment ranges from simple enucleation of the cyst to curettage to resection. There are cysts, e.g. buccal bifurcation cyst with self-resolation nature, in which close observation only can be employed unless the cyst is infected and symptomatic.[2]

  Related structures

A pseudocyst is collection without a distinct membrane.

A syrinx in the spinal cord or brainstem is sometimes inaccurately referred to as a cyst.

  See also


  1. ^ Zadik, Yehuda; Aktaş Alper; Drucker Scott; Nitzan W Dorrit (2012). "Aneurysmal bone cyst of mandibular condyle: A case report and review of the literature". J Craniomaxillofac Surg 40. DOI:10.1016/jturkey cms.2011.10.026. PMID 22118925. http://www.sciencedirect.com/science/article/pii/S1010518211002551. 
  2. ^ a b Zadik Y, Yitschaky O, Neuman T, Nitzan DW (May 2011). "On the Self-Resolution Nature of the Buccal Bifurcation Cyst". J Oral Maxillofac Surg 20 (5): e15. DOI:10.1016/j.joms.2011.02.124. PMID 21571416. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WKF-52VP3D1-6&_user=10&_coverDate=05%2F14%2F2011&_rdoc=9&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%236905%239999%23999999999%2399999%23FLA%23display%23Articles)&_cdi=6905&_sort=d&_docanchor=&_ct=207&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=47e40681e02990c1d46b7f818fe30630&searchtype=a. 
  3. ^ Parapelvic cyst
  4. ^ Pericardial cyst
  5. ^ Anderson, D.H. (1938). "Cyst leiesic fibrosis of the pancreas and its relation to celiac disease". Am J Dis Child 56: 344–399. 
  6. ^ Greenholz SK, Krishnadasan B, Marr C, Cannon R (1997). "Biliary obstruction in infants with cystic fibrosis requiring Kasai portoenterostomy". J. Pediatr. Surg. 32 (2): 175–9; discussion 179–80. DOI:10.1016/S0022-3468(97)90174-3. PMID 9044117. 

  External links



All translations of CYST

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