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Gastrointestinal Neoplasms
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D005770 |
[Tumors or cancer of the GASTROINTESTINAL TRACT, from the MOUTH to the ANAL CANAL.
] |
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Gastrointestinal Stromal Tumors
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D046152 |
[All tumors in the GASTROINTESTINAL TRACT arising from mesenchymal cells (MESODERM) except those of smooth muscle cells (LEIOMYOMA) or Schwann cells (SCHWANNOMA).
] |
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Gastrointestinal Tract
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D041981 |
[Generally refers to the digestive structures stretching from the MOUTH to ANUS, but does not include the accessory glandular organs (LIVER; BILIARY TRACT; PANCREAS).
] |
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Gastrointestinal Transit
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D005772 |
[Passage of food (sometimes in the form of a test meal) through the gastrointestinal tract as measured in minutes or hours. The rate of passage through the intestine is an indicator of small bowel function.
] |
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Gastroparesis
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D018589 |
[Chronic delayed gastric emptying. Gastroparesis may be caused by motor dysfunction or paralysis of STOMACH muscles or may be associated with other systemic diseases such as DIABETES MELLITUS.
] |
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Gastropexy
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D059485 |
[Surgical fixation of the stomach to the abdominal wall.
] |
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Gastroplasty
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D015391 |
[Surgical procedures involving the STOMACH and sometimes the lower ESOPHAGUS to correct anatomical defects, or to treat MORBID OBESITY by reducing the size of the stomach. There are several subtypes of bariatric gastroplasty, such as vertical banded gastroplasty, silicone ring vertical gastroplasty, and horizontal banded gastroplasty.
] |
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Gastropoda
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D049851 |
[A class in the phylum MOLLUSCA comprised of SNAILS and slugs. The former have coiled external shells and the latter usually lack shells.
] |
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Gastroschisis
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D020139 |
[A congenital defect with major fissure in the ABDOMINAL WALL lateral to, but not at, the UMBILICUS. This results in the extrusion of VISCERA. Unlike OMPHALOCELE, herniated structures in gastroschisis are not covered by a sac or PERITONEUM.
] |
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Gastroscopes
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D020699 |
[Endoscopes used for examining the interior of the stomach.
] |
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Gastroscopy
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D005773 |
[Endoscopic examination, therapy or surgery of the interior of the stomach.
] |
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Gastrostomy
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D005774 |
[Creation of an artificial external opening into the stomach for nutritional support or gastrointestinal compression.
] |
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Gastrula
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D005775 |
[The opening of the archenteron, central cavity of gastrula, which is formed by invagination of the BLASTULA or BLASTOCYST. Archenteron gives rise to the alimentary canal of the DIGESTIVE SYSTEM.
, The developmental stage that follows BLASTULA or BLASTOCYST. It is characterized by the morphogenetic cell movements including invagination, ingression, and involution. Gastrulation begins with the formation of the PRIMITIVE STREAK, and ends with the formation of three GERM LAYERS, the body plan of the mature organism.
] |
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Gastrulation
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D054262 |
[A process of complicated morphogenetic cell movements that reorganizes a bilayer embryo into one with three GERM LAYERS and specific orientation (dorsal/ventral; anterior/posterior). Gastrulation describes the germ layer development of a non-mammalian BLASTULA or that of a mammalian BLASTOCYST.
] |
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Gated Blood-Pool Imaging
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D015637 |
[Radionuclide ventriculography where scintigraphic data is acquired during repeated cardiac cycles at specific times in the cycle, using an electrocardiographic synchronizer or gating device. Analysis of right ventricular function is difficult with this technique; that is best evaluated by first-pass ventriculography (VENTRICULOGRAPHY, FIRST-PASS).
] |
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Gatekeeping
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D020793 |
[The controlling of access to health services, usually by primary care providers; often used in managed care settings to reduce utilization of expensive services and reduce referrals. (From BIOETHICS Thesaurus, 1999)
] |
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Gatifloxacin
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D000077734 |
[A fluoroquinolone antibacterial agent and DNA TOPOISOMERASE II inhibitor that is used as an ophthalmic solution for the treatment of BACTERIAL CONJUNCTIVITIS.
] |
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Gaucher Disease
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D005776 |
[This type shows moderate to severe neurological effect in childhood.
, An autosomal recessive disorder caused by a deficiency of acid beta-glucosidase (GLUCOSYLCERAMIDASE) leading to intralysosomal accumulation of glycosylceramide mainly in cells of the MONONUCLEAR PHAGOCYTE SYSTEM. The characteristic Gaucher cells, glycosphingolipid-filled HISTIOCYTES, displace normal cells in BONE MARROW and visceral organs causing skeletal deterioration, hepatosplenomegaly, and organ dysfunction. There are several subtypes based on the presence and severity of neurological involvement.
, This type afflicts both children and adults who show no neurological effect. It is more prevalent in people of Ashkenazi Jewish ancestry.
, This type usually shows severe neurological effect in the first year of life.
] |
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Gaultheria
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D031282 |
[A plant genus of the family ERICACEAE. The common name of "wintergreen" is also used for PYROLA and "snowberry" is also used for SYMPHORICARPOS.
] |
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Geese
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D005777 |
[Any of various large waterfowl in the order Anseriformes, especially those of the genera Anser (gray geese) and Branta (black geese). They are larger than ducks but smaller than swans, prefer FRESH WATER, and occur primarily in the northern hemisphere.
] |
