cyst

1. is a type of: pathology - any deviation from a healthy or normal condition
   subtypes:

   • dermoid cyst - a cystic tumor (usually benign) with a wall lined with epithelium and a cavity containing other material
   • galactocele - a cystic tumor containing milk or a milky substance (especially in the mammary glands)
   • blood cyst, hematocyst, hemorrhagic cyst - a cyst containing blood
   • hydatid - cyst filled with liquid; forms as a result of infestation by tapeworm larvae (as in echinococcosis)
   • nabothian cyst, nabothian follicle - a cyst that forms in the nabothian glands of the uterine cervix
   • ovarian cyst - a cystic tumor (usually benign) of the ovary
   • ranula - a cyst on the underside of the tongue
   • pilar cyst, sebaceous cyst, steatocystoma, wen - a common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked
2. is a type of: sac - a structure resembling a bag in an animal
   subtypes:

   • dacryocyst, lacrimal sac, tear sac - either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands
   • dictyosome, golgi apparatus, golgi body, golgi complex - a netlike structure in the cytoplasm of animal cells (especially in those cells that produce secretions)
   • bleb, blister, bulla - (pathology) an elevation of the skin filled with serous fluid
   • follicle - any small spherical group of cells containing a cavity
   • liposome - an artificially made microscopic vesicle into which nucleic acids can be packaged; used in molecular biology as a transducing vector
   same as: vesicle

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