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Encyclopedia > Cyst
This article is about cysts in the body. For the ICAO airport code CYST, see St. Theresa Point Airport. For hard-shelled resting stages of some small organisms, see Microbial cyst.

A cyst is a closed sac having a distinct membrane and division on the nearby tissue. They may contain air, fluids, or semi-solid material. A collection of pus is called an abscess, not a cyst. Once formed, the cyst could go away by itself or will have to be removed using surgery. The ICAO (IPA pronunciation: ) airport code or location indicator is a four-letter alphanumeric code designating each airport around the world. ... St. ... A biological membrane or biomembrane is an enclosing or separating tissue which acts as a barrier within or around a cell. ... Look up division in Wiktionary, the free dictionary. ... Biological tissue is a collection of interconnected cells that perform a similar function within an organism. ... Look up air in Wiktionary, the free dictionary. ... For other uses, see Pus (disambiguation). ... For the death metal band, see Abscess (band). ...

Contents

Locations

Arachnoid cysts are cerebrospinal fluid covered by arachnoidal cells and collagen[1] that may develop between the surface of the brain and the cranial base or on the arachnoid membrane, one of the three membranes that cover the brain and the spinal cord. ... A breast cyst appears as a lump on the breast, which may appear to be similar to breast cancer but is generally benign. ... A Bakers cyst, otherwise known as a popliteal cyst, is a benign swelling found behind the knee joint. ... A chalazion, also known as a Meibomian gland lipogranuloma, is a cyst in the eyelid that is caused by inflammation of the meibomian gland, usually on the upper eyelid. ... Cysticercosis, or neurocysticercosis, is the most common parasitic infestation of the central nervous system worldwide. ... A dentigerous cyst is an odontogenic cyst - thought to be of developmental origin - associated with the crown of an unerupted (or partially erupted) tooth. ... A dermoid cyst is a teratoma that contains developmentally mature skin, with hair follicles and sweat glands, sometimes luxuriant clumps of long hair, and often pockets of sebum, blood, or fat. ... This article does not cite any references or sources. ... A ganglion cyst (also known as a bible bump) is a swelling that often appears on or around joints and tendons in the hand (or sometimes feet). ... Gartners duct is a potential embryological remnant in human female development of the mesonephric ducts. ... Orders Subclass Cestodaria Amphilinidea Gyrocotylidea Subclass Eucestoda Aporidea Caryophyllidea Cyclophyllidea Diphyllidea Lecanicephalidea Litobothridea Nippotaeniidea Proteocephalidea Pseudophyllidea Spathebothriidea Tetraphyllidea Trypanorhyncha In biology, Cestoda is the class of parasitic flatworms, called cestodes or tapeworms, that live in the digestive tract of vertebrates as adults and often in the bodies of various animals... An odontogenic keratocyst is a benign but locally aggressive developmental odontogenic cyst. ... The Nevoid Basal Cell Carcinoma Syndrome (NBCCS) (also known as Basal Cell Nevus Syndrome, Multiple Basal Cell Carcinoma Syndrome, Gorlin syndrome, or Gorlin-Goltz syndrome) is an inherited group of multiple defects involving the skin, nervous system, eyes, endocrine system, and bones. ... WHO redirects here. ... A chalazion, also known as a Meibomian gland lipogranuloma, is a cyst in the eyelid that is caused by inflammation of the meibomian gland, usually on the upper eyelid. ... This article or section does not adequately cite its references or sources. ... Benign ovarian cyst. ... Polycystic kidney disease (PKD) is a progressive, genetic disorder of the kidneys. ... Polycystic Ovary Syndrome (abbreviated PCOS or POS), also known clinically as Stein-Leventhal syndrome, is an endocrine disorder that affects approximately 10% of all women . ... Close-up of an infected sebaceous cyst that has abscessed, located behind the ear lobe. ... Vocal fold cysts are collections of fluid in sac-like formations on the vocal folds. ...

Cystic fibrosis

Despite being described in 1938 as involving the microscopic appearance of cysts in the pancreas[1] 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.[2] A microscope (Greek: micron = small and scopos = aim) is an instrument for viewing objects that are too small to be seen by the naked or unaided eye. ... A genetic disorder is a condition caused by abnormalities in genes or chromosomes. ... The cystic duct is the short (usually around a centimetre or so) duct that joins the gall bladder to the common bile duct. ...


Benign vs malignant

Many cysts in the body are benign (functional), the result of plugged ducts or other natural body outlets for secretions. However, a few are tumors or are produced within tumors, and are potentially malignant: Look up Benign in Wiktionary, the free dictionary. ... Look up functional in Wiktionary, the free dictionary. ... Tumor (American English) or tumour (British English) originally means swelling, and is sometimes still used with that meaning. ... Cancer is a class of diseases or disorders characterized by uncontrolled division of cells and the ability of these to spread, either by direct growth into adjacent tissue through invasion, or by implantation into distant sites by metastasis (where cancer cells are transported through the bloodstream or lymphatic system). ...

A dermoid cyst is a teratoma that contains developmentally mature skin, with hair follicles and sweat glands, sometimes luxuriant clumps of long hair, and often pockets of sebum, blood, or fat. ... An odontogenic keratocyst is a benign but locally aggressive developmental odontogenic cyst. ...

Related structures

A pseudocyst is collection without a distinct membrane. A pseudocyst is a pathological collection of fluid. ...


A syrinx in the spinal cord or brainstem is sometimes inaccurately referred to as a cyst. In medicine, a syrinx is a rare, fluid-filled neuroglial cavity within the spinal cord (syringomyelia) or in the brain stem (syringobulbia) Dorlands/Elsevier s_33/12787038 Merck Manual 14-182d Category: ...


References

  1. ^ Anderson, D.H. (1938). "Cystic fibrosis of the pancreas and its relation to celiac disease". Am J Dis Child 56: 344-399. 
  2. ^ 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. 

A digital object identifier (or DOI) is a standard for persistently identifying a piece of intellectual property on a digital network and associating it with related data, the metadata, in a structured extensible way. ...

External links

  • DER78 at FPnotebook
  • "Cyst Symptoms and Causes" by Melissa Conrad Stöppler, MD and William C. Shiel, Jr., MD, FACP, FACR.
v • d • e
Pathology: Cancer, Tumors, Neoplasms, and oncology (C00-D48, 140-239)
Benign tumors
Malignant progression
Topography
lip, oral cavity and pharynx: Oral - Head/Neck - Nasopharyngeal

digestive system: tract (Esophagus, Stomach, Small intestine, Colon/rectum, Appendix, Anus) - glands (Liver, Bile duct, Gallbladder, Pancreas) The Family Practice Notebook is a medical database focused on family practice. ... A renal cell carcinoma (chromophobe type) viewed on a hematoxylin & eosin stained slide Pathologist redirects here. ... Cancer is a class of diseases or disorders characterized by uncontrolled division of cells and the ability of these to spread, either by direct growth into adjacent tissue through invasion, or by implantation into distant sites by metastasis (where cancer cells are transported through the bloodstream or lymphatic system). ... For malignant tumors specifically, see cancer. ... Neoplasia (literally: new growth) is sudden and abnormal growth in a tissue or organ. ... See cancer for the biology of the disease, as well as a list of malignant diseases. ... Hyperplasia (or hypergenesis) is a general term referring to the proliferation of cells within an organ or tissue beyond that which is ordinarily seen in e. ... A pseudocyst is a pathological collection of fluid. ... A hamartoma is a common benign tumor in an organ composed of tissue elements normally found at that site but that are growing in a disorganized mass. ... A benign tumor is a tumor that lacks all three of the malignant properties of a cancer. ... Dysplasia (from Greek, roughly: bad form) is a term used in pathology to refer to an abnormality in maturation of cells within a tissue. ... Carcinoma in situ is present when a tumor has been detected that has the characteristics of malignancy but has not invaded other tissues. ... Cancer is a class of diseases or disorders characterized by uncontrolled division of cells and the ability of these to spread, either by direct growth into adjacent tissue through invasion, or by implantation into distant sites by metastasis (where cancer cells are transported through the bloodstream or lymphatic system). ... For the musical composition, see Metastasis (Xenakis composition). ... Oral cancer is any cancerous tissue growth located in the mouth. ... Head and neck cancers are malignant growths originating in the lip and oral cavity (mouth), nasal cavity, pharynx, larynx, thyroid, paranasal sinuses, salivary glands and cervical lymph nodes of the neck. ... Background: Nasopharyngeal carcinoma is a rare tumor arising from the epithelium of the nasopharynx. ... Esophageal cancer is malignancy of the esophagus. ... Stomach cancer (also called gastric cancer) can develop in any part of the stomach and may spread throughout the stomach and to other organs; particularly the esophagus and the small intestine. ... Endoscopic image of adenocarcinoma of duodenum seen in the post-bulbar duodenum. ... Colorectal cancer, also called colon cancer or bowel cancer, includes cancerous growths in the colon, rectum and appendix. ... Appendix cancer or appendiceal cancer is a malignancy of the vermiform appendix, accounting for about 1 in 200 of all gastrointestinal malignancies. ... Anal cancer is a distinct entity from the more common colorectal cancer. ... Hepatocellular carcinoma (HCC, also called hepatoma or hepatocarcinogenesis) is a primary malignancy (cancer) of the liver. ... Cholangiocarcinoma is a cancer of the bile ducts, which drain bile from the liver into the small intestine. ... Bold textA more uncommon cancer predominate in females, if found early on before symptoms, can be cured by removing Gallbladder, most often it is found after symptoms occur (abdominal pain, Jaundice) and has spread to other organs such as liver and the outlook at this point is poor. ... Pancreatic cancer is a malignant tumor of the pancreas. ...


respiratory system: Larynx - Lung Cancer of the larynx also may be called laryngeal cancer. ... Lung cancer is a disease of uncontrolled cell growth in tissues of the lung. ...


bone, articular cartilage, skin, and connective tissue: Bone (Tailbone) - Skin - Blood An arm bone tumor Bone tumor is an inexact term, which can be used for both benign and malignant abnormal growths found in bone, but is most commonly used for primary tumors of bone, such as osteosarcoma (or osteoma). ... Sacrococcygeal teratoma (SCT), a birth defect, is a tumor located at the base of the tailbone (coccyx). ... Skin cancer is a malignant growth on the skin which can have many causes. ... Leukemia or leukaemia (Greek leukos λευκός, white; aima αίμα, blood) is a cancer of the blood or bone marrow and is characterized by an abnormal proliferation (production by multiplication) of blood cells, usually white blood cells (leukocytes). ...


urogenital: breast and female genital organs (Breast, Vulva, Vagina, Cervix, Uterus, Endometrium, Ovaries) - male genital organs (Penis, Prostate, Testicles) - urinary organs (Kidney, Bladder) Breast cancer is cancer of breast tissue. ... This page is a candidate for speedy deletion. ... Vaginal cancer is any type of cancer that forms in the tissues of the vagina. ... Cervical cancer is a malignant cancer of the cervix. ... It has been suggested that this article or section be merged with Endometrial cancer. ... Endometrial cancer involves cancerous growth of the endometrium (lining of the uterus). ... Ovarian cancer is a malignant tumor (a kind of neoplasm) located on an ovary. ... Penile cancer is a malignant growth found on the skin or in the tissues of the penis, usually originating in the glans and/or foreskin. ... HRPC redirects here. ... Testicular cancer is cancer that develops in the testicles, a part of the male reproductive system. ... Renal cell carcinoma is the most common form of kidney cancer arising from the renal tubule. ... Bladder cancer refers to any of several types of malignant growths of the urinary bladder. ...


nervous system: Eye (Uvea) - Brain (Choroid plexus) Ocular oncology is the branch of medicine dealing with tumors relating to the eye and its adnexa. ... Uveal Melanoma is cancer (melanoma) of the colored part of the eye and the surrounding areas (uvea). ... A brain tumor is any intracranial tumor created by abnormal and uncontrolled cell division, normally either in the brain itself (neurons, glial cells (astrocytes, oligodendrocytes, ependymal cells), lymphatic tissue, blood vessels), in the cranial nerves (myelin-producing Schwann cells), in the brain envelopes (meninges), skull, pituitary and pineal gland, or...

endocrine system: Thyroid (Papillary, Follicular, Medullary, Anaplastic) - Adrenal tumor (Adrenocortical carcinoma, Pheochromocytoma) - Pituitary
Misc.
Thyroid cancer is cancer of the thyroid gland. ... Thyroid cancer is cancer of the thyroid gland. ... Adrenocortical carcinoma is a carcinoma of the cortex (outer layer) of the adrenal gland. ... A phaeochromocytoma (pheochromocytoma in the US) is a neuroendocrine tumor of the medulla of the adrenal glands originating in the chromaffin cells, which secretes excessive amounts of catecholamines, usually adrenaline and noradrenaline (epinephrine and norepinephrine in the US). ... Pituitary adenomas are tumors that occur in the pituitary gland, and account for about 10% of intracranial neoplasms. ... A tumor suppressor gene is a gene that reduces the probability that a cell in a multicellular organism will turn into a tumor cell. ... An oncogene is a modified gene that increases the malignancy of a tumor cell. ... The stage of a cancer is a descriptor (usually numbers I to IV) of how much the cancer has spread. ... In pathology, Grading is a measure of the progress of tumors. ... Cancers are caused by a series of mutations. ... Look up carcinogen in Wiktionary, the free dictionary. ... Cancer research is research into cancer in order to identify causes and develop strategies for prevention, diagnosis, treatments and cure. ... A paraneoplastic phenomenon is a disease or symptom that is the consequence of the presence of cancer in the body, but is not due to the local presence of cancer cells. ... This is a list of terms related to oncology. ...

  Results from FactBites:
 
Ovarian Cyst -- familydoctor.org (906 words)
An ovarian cyst is a fluid-filled sac in or on the ovary.
Many ovarian cysts are noncancerous cysts that occur as a result of ovulation (the release of an egg from the ovary).
If the cyst is small (about the size of a plum or smaller) and if it looks benign on the sonogram, your doctor may decide to do a laparoscopy.
What is a Cyst? (1085 words)
A cyst is generally formed on the surface of an organ or in the empty spaces between muscle and skin tissues.
The condition known as cystic fibrosis is aggravated by numerous cysts forming and subsequently bursting in the lung cavity.
I have had a couple cysts that were a little smaller than a pea and I was able to reduce them to nothing over the course of a month or so by rubbing them to break up the material inside.
  More results at FactBites »


 

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