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cyst    音标拼音: [s'ɪst]
n. 包囊,膀胱,囊肿

包囊,膀胱,囊肿

cyst
n 1: a closed sac that develops abnormally in some body
structure
2: a small anatomically normal sac or bladderlike structure
(especially one containing fluid) [synonym: {vesicle}, {cyst}]

Cyst \Cyst\ (s[i^]st), 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}.]
[1913 Webster]

2. (Bot.) One of the bladders or air vessels of certain
alg[ae], as of the great kelp of the Pacific, and common
rockweeds ({Fuci}) of our shores. --D. C. Eaton.
[1913 Webster]

3. (Zool.)
(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}.
[1913 Webster]


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  • Epidermoid cysts - Symptoms and causes - Mayo Clinic
    Epidermoid (ep-ih-DUR-moid) cysts are harmless small bumps beneath the skin They are most common on the face, neck and trunk Epidermoid cysts are slow growing and often painless, so they rarely cause problems or need treatment You might choose to have a cyst removed if it bothers you, breaks open, or is painful or infected
  • Ovarian cysts - Symptoms and causes - Mayo Clinic
    Ovarian cysts are common Most of the time, you have little or no discomfort, and the cysts are harmless Most cysts go away without treatment within a few months But sometimes ovarian cysts can become twisted or burst open (rupture) This can cause serious symptoms To protect your health, get regular pelvic exams and know the symptoms that can signal what might be a serious problem
  • Tumor vs. cyst: Whats the difference? - Mayo Clinic
    Tumors and cysts are two distinct entities Cyst A cyst is a sac that may be filled with air, fluid or other material A cyst can form in any part of the body, including bones, organs and soft tissues Most cysts are noncancerous (benign), but sometimes cancer can cause a cyst Tumor A tumor is
  • Epidermoid cysts - Diagnosis and treatment - Mayo Clinic
    Diagnosis Your healthcare professional will likely be able to tell whether your bump is an epidermoid cyst by checking the affected skin A sample of your skin might be scraped off for study in a laboratory Epidermoid cysts look like sebaceous cysts or pilar cysts, but they're different True epidermoid cysts result from damage to hair follicles or the outer layer of skin, called the
  • Kidney cysts - Symptoms and causes - Mayo Clinic
    A kidney cyst is a round or oval fluid-filled pouch with a well-defined outline Kidney cysts typically grow on the surface of a kidney Some may develop inside the kidney
  • Breast cysts - Symptoms and causes - Mayo Clinic
    Breast cysts don't require treatment unless a cyst is large and painful or uncomfortable In that case, draining the fluid from a breast cyst can ease symptoms
  • Breast cysts - Diagnosis and treatment - Mayo Clinic
    Diagnosis of a breast cyst usually includes a breast exam; imaging tests, such as a breast ultrasound or mammogram; and possibly fine-needle aspiration or a breast biopsy Breast exam After discussing your symptoms and health history, your doctor will physically examine the breast lump and check for any other breast abnormalities Because your doctor can't tell from a clinical breast exam
  • Kidney cysts - Diagnosis and treatment - Mayo Clinic
    If your kidney cyst changes and causes symptoms, you may choose to have treatment at that time Sometimes a simple kidney cyst goes away on its own Treatments for cysts that cause symptoms If a simple kidney cyst is causing symptoms, your health care provider may recommend treatment Options include:
  • Ovarian cysts - Diagnosis and treatment - Mayo Clinic
    Diagnosis A cyst on your ovary can be found during a pelvic exam or on an imaging test, such as a pelvic ultrasound Depending on the size of the cyst and whether it's filled with fluid or solid, your health care provider likely will recommend tests to determine its type and whether you need treatment
  • Pilonidal cyst - Symptoms and causes - Mayo Clinic
    A pilonidal cyst is an unusual pocket in the skin that usually contains hair and skin debris A pilonidal cyst is almost always near the tailbone at the top of the buttocks





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