sigmoid


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to sigmoid: sigmoid volvulus

sigmoid

[′sig‚mȯid]
(biology)
S-shaped.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
He concluded that the SNL was a more accurate landmark to localise the distal transverse sinus and that Asterion was not reliable to localize transverse sigmoid junction.
Internal hernia of a portion of the ileum along with antimesentric wall of the sigmoid colon had occurred through an unrecognized perforation in the dome of the urinary bladder following TURBT.
Emergency surgery is needed to treat gangrenous SV, and primary anastomosis or stoma is used together with the resection of the gangrenous sigmoid colon.7,8
Generally, with the retrosigmoid approach to CPA, a small craniotomy is performed in the region behind the sigmoid sinus and close to the sinus.
Carcinoma of Sigmoid Colon Presenting as Abdominal Wall Abscess.
A history of unexplained lower abdominal pain and absence of IUD strings on per speculum exam should make a clinician suspicious of a migrated IUD, thereby requiring surgical or laparoscopic intervention Herein, we present a rare case of ectopic IUD in sigmoid colon which was surgically removed.
[11] classify ISK into three types: type I, where the active ileum wraps around the base of the sigmoid colon; type II, where the active sigmoid colon wraps around the ileum; and type III, where the active ileocaecal segment wraps around the sigmoid colon.
The radiologic view of transverse colon volvulus is similar to that of sigmoid volvulus; however, gastrograf in enema has revealed that the obstruction site is more proximal than its actual location.
The coffee-bean sign, an inverted U-shape between the twisting and distending of the sigmoid colon and mesenteric axis [3, 6], is an X-ray finding diagnostic of sigmoid volvulus.
Her past medical history was significant for hypothyroidism, a microcytic anemia, and sigmoid volvulus in her previous pregnancy two years prior requiring endoscopic reduction at 26 weeks' gestation.
Each appendage averages 3 cm in length, although size and shape may vary greatly with larger appendages appearing near the sigmoid colon.
On exploration, an area of perforation about 1 cm in diameter was observed in the sigmoid colon.