 | Cyst: Encyclopedia - Cyst
Cyst
This is an article about cysts in the body. For the ICAO airport code CYST see St. Theresa Point Airport.
A cyst is a closed sac having a distinct membrane and developing abnormally in a cavity or structure of the body. Cysts may occur as a result of a developmental error in the embryo during pregnancy or they may be caused by infections. However, they sometimes arise spontaneously with no apparent cause. Cysts may often be dangerous as they may have negative effects on the nearby tissue. They may contain air, fluids, or semi-solid material.
Cysts may also be a sac that encloses an organism, such as in the case of certain parasites. They protect the parasite from the churning acid of the stomach and once in the intestines, it breaks out.
Cystic fibrosis is an example of a genetic disorder whereby cysts develop in lung tissue and release mucus into the lungs (see Alveoli) reducing lung capacity and causing persistent coughing.
Cysts can occur anywhere in the body; however, some of the more common ones are listed here:
- Ganglion cyst
- Ovarian cyst
- Pilonidal cyst
- Sebaceous cyst
- Paratubal cyst
- Vocal fold cyst
- Bronchial cyst
Compare a pseudocyst, which is a collection without a distinct membrane.
Topography: Anus - Bladder - Bone - Brain - Breast - Cervix - Colon/rectum - Duodenum - Endometrium - Esophagus - Eye - Gallbladder - Head/Neck - Liver - Larynx - Lung - Mouth - Pancreas - Penis - Prostate - Kidney - Ovaries - Skin - Stomach - Testicles - Thyroid
Morphology: Papilloma/carcinoma - Adenoma/adenocarcinoma - Soft tissue sarcoma - Melanoma - Fibroma/fibrosarcoma - Lipoma/liposarcoma - Leiomyoma/leiomyosarcoma - Rhabdomyoma/rhabdomyosarcoma - Mesothelioma - Angioma/angiosarcoma - Osteoma/osteosarcoma - Chondroma/chondrosarcoma - Glioma - Lymphoma/leukemia
Treatment: Chemotherapy - Radiation therapy - Immunotherapy - Experimental cancer treatment
Related structures: Cyst - Dysplasia - Hamartoma - Neoplasia - Nodule - Polyp - Pseudocyst
Misc: Tumor suppressor genes/oncogenes - Staging/grading - Carcinogenesis/metastasis - Carcinogen - Research - Paraneoplastic phenomenon - ICD-O - List of oncology-related terms
Other related archivesAdenoma, Alveoli, Angioma, Anus, Bladder, Bone, Brain, Breast, Carcinogen, Carcinogenesis, Cervix, Chemotherapy, Chondroma, Colon/rectum, Cystic fibrosis, Duodenum, Dysplasia, Endometrium, Esophagus, Experimental cancer treatment, Eye, Fibroma, Gallbladder, Ganglion cyst, Glioma, Hamartoma, Head/Neck, ICAO airport code, ICD-O, Immunotherapy, Kidney, Larynx, Leiomyoma, Lipoma, List of oncology-related terms, Liver, Lung, Lymphoma, Melanoma, Mesothelioma, Mouth, Neoplasia, Nodule, Osteoma, Ovarian cyst, Ovaries, Pancreas, Papilloma, Paraneoplastic phenomenon, Penis, Pilonidal cyst, Polyp, Prostate, Pseudocyst, Radiation therapy, Research, Rhabdomyoma, Sebaceous cyst, Skin, Soft tissue sarcoma, St. Theresa Point Airport, Staging, Stomach, Testicles, Thyroid, Tumor suppressor genes, Vocal fold cyst, adenocarcinoma, air, angiosarcoma, carcinoma, chondrosarcoma, fibrosarcoma, genetic disorder, grading, leiomyosarcoma, leukemia, liposarcoma, lungs, membrane, metastasis, oncogenes, osteosarcoma, pseudocyst, rhabdomyosarcoma, tissue
 Adapted from the Wikipedia article "Cyst", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
