mediastinal cyst
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Mediastinal tumor — Classification and external resources Micrograph of the primitive neuroepithelium of an immature teratoma of the mediastinum. H E stain … Wikipedia
Mediastinal germ cell tumor — Malignant mediastinal germ cell tumors of various histologies were first described as a clinical entity approximately 50 years ago.[when?] Mediastinal and other extragonadal germ cell tumors were initially thought to represent isolated metastases … Wikipedia
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. Cyst Classification and external resources … Wikipedia
Cyst — A closed sac or capsule, usually filled with fluid or semisolid material. * * * 1. A bladder. 2. An abnormal sac containing gas, fluid, or a semisolid material, with a membranous lining. SEE ALSO: pseudocyst. [G. kystis, bladder] adventitious c.… … Medical dictionary
mediastinal lymphadenopathy — inflammation and swelling of mediastinal lymph nodes, often caused by some underlying condition such as mediastinitis, a cyst, or a tumor that can be malignant such as in leukemia or lymphoma. Called also mediastinal lymphadenitis … Medical dictionary
neurenteric cyst — a type of mediastinal cyst found in the posterior mediastinum, containing tissues from the nervous system and other organs, and connecting with the spinal dura mater … Medical dictionary
thymic cyst — a rare congenital type of mediastinal cyst, arising in the upper anterior mediastinum, containing tissue resembling that of the thymus … Medical dictionary
bronchogenic cyst — a spherical congenital cyst arising from anomalous budding during the formation of the tracheobronchial tree; it is usually found in the mediastinum or the lung and is lined with bronchial epithelium that may contain secretory elements. It may… … Medical dictionary
pericardial cyst — a benign collection of clear fluid, usually found next to the pericardium; such cysts must be differentiated from the more serious mediastinal tumors … Medical dictionary
Sign — Any abnormality that indicates a disease process, such as a change in appearance, sensation, or function, that is observed by a physician when evaluating a patient. * * * 1. Any abnormality indicative of disease, discoverable on examination of… … Medical dictionary
