### condition:

Cyst
* Most cysts cause effects
  - mass effects
  - pain
  - respiratory problems
  - shoulder pain
  - contain fluid
  - destroy bones
* Most cysts develop over month periods
  - go away on their own after a few menstrual cycles
* Most cysts have cell walls
  - distinct cell walls
  - resistant walls
  - thin walls
  - probably remain dormant for the life of the host
* Some cysts are tiny, but others can be as large as an egg.
* Some cysts cause focal seizures
  - infection
  - kidney damage
  - reaction
  - serious kidney damage
  - contain blood
  - depend on locations
* Some cysts form during development of the embryo but the majority form later in life
  - in the lung
  - induce infection
  - interfere with absorption
* Some cysts occur in moose
  - muscles
  - ovaries
  - persist for years
  - produce spores
  - tend to adhere to the posterior surface of the cornea
* allow some pathogens to survive outside their host.
* also develop within the ovary.
* also squeeze blood vessels, forcing increased blood pressure
  - on blood vessels, forcing the pressure to rise
  - wash up on the shore
* apparently form from single vegatative cells.
* are abnormal lumps or swellings that are filled with fluid or semisolid material
  - almost never due to cancer
  - also more likely to become infected in smokers
* are barely visible to the naked eye
  - with the naked eye
  - benign and malignant transformation is exceedingly rare
  - carried away on the wind or on the feet of animals
  - different than polyps
  - diseases
  - distinguished by a retracted cytoplasm
  - due to entrapment of epithelial cells during fusion of the labial scrotal folds
* are fluid filled pockets that form in the tissues of the breast, causing a mass
  - structures
  - fluid-filled cavities
* are fluid-filled sacs, and fibrosis refers to connective tissue or scar tissue formation
  - to the forming of connective tissue or scar tissue
  - forme'd
  - formed as the nematodes continue to develop into egg-producing adults
  - formed, at least in the free-living species
  - found in the feces of infected animals
  - frequently coalescent, and filled with straw colored fluid
  - generally spherical and have thick walls with or without extensive surface ornamentation
  - hardy little tablets that exit an infected animal's body along with feces
  - how protozoans survive in the environment outside the host's body
  - inactivated by most quaternary ammonium compounds, steam, and boiling water
  - just collections of fluid
  - large, inflamed lesions that are filled with pus
  - larger than bacteria and can be excluded by most filters
  - mobile with palpation and transilluminate
  - noncancerous round sacs containing water-like fluid
  - oval, have four nuclei, and have clearly visible axostyles
  - passed in a host's feces, remaining viable in a moist environment for months
  - pathology
  - protozoa that produce a special protective shell
  - quite common among women
  - rare in cecal material but com- mon in culture
* are resistant forms and are responsible for transmission of giardiasis
  - to chemical and physical agents
  - round nodules under the skin that are filled with cheesy contents or fluid
* are sacs filled with fluid or semisolid material
  - or pockets filled with fluid or semi-solid material
  - small vesicles filled with a clear fluid and usually cause no complaints at all
  - stages with a protective membrane or thickened wall
  - swellings in the lining of the membrane, filled with fluid or semi-fluid material
* are the 'eggs' made by parasites
  - environmental survival form and infective stage of the organism
  - other extreme of fibrocystic changes
  - parasite stage responsible for transmission of balantidiasis
  - size of a pin-head or the point of a pen
  - used to survive the bad times in an environment
* are usually distinguishable from solid tumors by ultrasound
  - small, appear in limited numbers, and cause no serious problems
* are very common and usually benign
  - for many women
  - on the epididymis
  - virtually never cancerous
* arising in the first branchial cleft appear beneath the posterior half of the mandible.
* begin as a blisterlike structure on the kidney.
* can also confuse the veterinarian when checking for pregnancy by ultrasound
  - form in other organs such as the liver
* can be inside the kidney as well as on the outside
  - painful and leave scars
  - up near the syrface of the skin and look more superficial, like whiteheads on the face
  - very painful, and scarring is often the end result
  - cause other, less daunting symptoms
  - exist outside of the body for months without losing their ability to infect new hosts
  - extend into the underlying bones and cause other types of problems
  - feel either soft or hard
  - form almost anywhere in the body, but they are especially common in the kidneys
  - last in the environment for several weeks
  - occur in association with tumors or infections or can be congenital
  - reappear at a later date, in which case they are simply drained again
  - remain viable in cold water for two months
* can survive cold climates
  - outside the body for several weeks under favourable conditions
  - travel to other ponds on the wind or on the feet, feathers or fur of large animals
* cause bone destruction, jaw expansion and displacement or damage to nearby teeth
* contain clear fluid or hemorrhagic material
  - thin fluid
* contaminate the water supply.
* develop in the kidneys and grow, destroying normal tissue.
* form in the bones and can make nearby joints swollen and tender
  - lower intestines and are then passed in the feces
  - ovary every month after puberty
* form, as far as is known, from single trophic cells.
* frequently disappear after aspiration and the removal of fluid.
* grow and develop over a period of years.
  - thicker walls than swimming cells
* is pathology
* normally develop during the menstrual cycle.
* occur deeper within the pores in the form of swollen red or white pustules
  - in live, lung or occasionally brain and other tissues
  - more frequently when an animal is under stress
* often go away without treatment.
* remains infectious for prolonged periods in the environment.
* represent the resting stage that enables the parasite to survive outside the body.
* resolve by themselves, but fibroadenomas continue to grow.
* tend to appear during adulthood, grow slowly, and persist indefinitely
  - suddenly and grow quickly
  - be slightly more purple
  - stay constant, slowly enlarge or regress whereas solid tumors grow slowly
* turn dark brown with age.
* turns into trophozoite, the feeding stage, which divides by binary fission into more cysts.
* usually appear as rounded densities on a mammogram
  - aren t cancerous