cysts

Definition: In pathology, “cyst” is the term used for lesions that consists of an epithelium-lined cavity that is filled by material that is generally fluid, mucinous or semi-solid.

Cysts can arise anywhere in the body and their epithelial lining varies according to the site and tissue they originate from.

Although cysts can have a bulky tumor-like appearance, the majority are completely benign non-neoplastic lesions. It should, however, be borne in mind that benign and malignant epithelial tumors arising at certain sites, like ovaries and pancreas, frequently present as cystic masses.

Types

 malformative cysts (developmental cysts )

• arachnoid cyst
• branchial cleft cyst
• digestive duplication cyst
• Rathke cleft cyst
• mesothelial cyst
• dermoid cyst
• epidermoid cyst
• lymphoepithelial cyst

 acquired cysts

• duct cysts

 tumoral cysts / cystic tumors

 inclusion cysts

• epidermal inclusion cysts
• serous inclusion cysts
  • peritoneal inclusion cysts
  • ovarian serous inclusion cysts

According to the localization

 jaw cysts/ cysts of the jaws
 cervical cysts
  bone cysts / cysts of bones
 cutaneous cysts
 intracranial cysts
 hepatic cysts
 mediastinal cysts
 penile cysts
 pulmonary cysts
 thymic cysts
 pancreatic cysts
 splenic cysts
  ovarian cysts
  renal cysts

• renal medullary cysts
• renal cortical cysts
• glomerular cysts

Intracystic anomalies

 intracystic papillary proliferation
 intracystic epithelial anomalies

• intracystic epithelial dysplasia
• cystic wall invasion
• cystic cunjunctive tissue invasion

Diagnostic of cysts / cystic anomalies

 bording cell appearance

• cystic cavity with endothelial bording cells

Differential diagnosis

 cystic malformations
 cystic tumors
 cystic anomalies

• cystic vascular malformations / cystic hemangioma
• cystic lymphangioma

Links

 cystinfo.com

See also

 cystic cavities