Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.
Related to string sign: ulcerative colitis
in pediatric gastrointestinal radiography, the narrowed pyloric canal seen with congenital pyloric stenosis; also used to describe a narrowed segment in regional ileitis on small bowel series.
a narrow pyloric canal with congenital pyloric stenosis or a narrowed bowel segment with regional ileitis. Use of a radiopaque contrast medium causes the narrowed lumen to appear as a thin string on radiographs.
Imaging Stomach An elongated, narrowed and straight single, occasionally dual channel of contrast as seen in well-developed hypertrophic pyloric stenosis
string signGI imaging–colon A linear fraying of the column of a barium study of the lower GI tract with luminal stenosis, spasm, ulceration and scarring, seen in the terminal ileum in Crohn's disease; grossly, affected intestine is thickened, rigid and likened to a garden hose Stomach An elongated, narrowed and straight single, occasionally dual channel of contrast as seen in well-developed hypertrophic pyloric stenosis.
string sign(string sīn)
pediatric gastrointestinal radiology The narrowed pyloric canal seen with congenital pyloric stenosis; also used to describe a narrowed segment in Crohn disease on small-bowel series.
1. twine, very thin rope.
2. a term used to denote a group of dairy cattle housed together in a free stall system based on stage of lactation and production with string 1 being the most recently calved and the highest producing cows, usually containing cows to the time of peak lactation after which they would move to string 2 and subsequently later strings. This allows groups of cattle to be fed separately on the basis of production.
string foreign body
see linear foreign body.
seen in radiographs of the stenosed gastric pylorus as contrast medium is forced into the limited canal.