Dilated Bowel: Causes & Reasons

Possible Causes for Dilated Bowel

Ultrasound Bedside test help to diagnose small bowel obstruction, findings suggestive of small bowel obstruction 7 : dilated bowel loop (diameter >2.5 cm) ineffective peristalsis [radiopaedia.org]

Bowel sounds were normal. Plain abdominal film did not show free air or dilated bowel loops. [webmedcentral.com]

Dilated loops of small bowel are visible (arrows). Enlarge Print Figure 3. [aafp.org]

Small Bowel Obstruction

Dilatation >3cm of the small bowel is considered abnormal, however the longer the segment of bowel that is dilated, the more likely bowel dilatation represents a genuine obstruction [radiologymasterclass.co.uk]

Arrow: Area of obstruction Gall stone Ileus Air in Bile duct Dilated small bowel Gall stone is not seen in this film and may overlie the sacrum where the dilated bowel seems [meddean.luc.edu]

The proximal small bowel is dilated (blue arrow). [radiologyassistant.nl]

Large Bowel Obstruction

Arrow: Area of obstruction Gall stone Ileus Air in Bile duct Dilated small bowel Gall stone is not seen in this film and may overlie the sacrum where the dilated bowel seems [meddean.luc.edu]

dilated loops of small bowel seen on imaging, rather than dilated loops of large bowel Ogilvie syndrome key distinguishing factor no mechanical lesion on CT imaging that [step2.medbullets.com]

[…] duct Dilated small bowel Gallstone is not seen in this film and may overlie the sacrum where the dilated bowel seems to end (black arrow) Lower GI in a patient with Large [lumen.luc.edu]

Intestinal Obstruction

Imaging showed dilated bowel loops confined to the centre of the peritoneal cavity. Intraoperatively it was seen to be a case of peritoneal encapsulation. [ncbi.nlm.nih.gov]

A, Abdominal radiograph shows multiple dilated bowel loops. [ajronline.org]

Intestinal Pseudo-Obstruction

The appearance of polyhydramnios and dilated bowel loops on prenatal sonographic examination usually implies mechanical obstruction. [ncbi.nlm.nih.gov]

A colostomy was performed for decompression of the dilated bowel and a biopsy of the lymph node surrounding the splenic flexure was taken. [ncbi.nlm.nih.gov]

The radiological findings commonly include paralytic ileus or signs of apparent clinical obstruction with dilated loops of bowel. [orpha.net]

Colonic Pseudo-Obstruction

Bowel function was thereafter restored. The method may be a therapeutic option for acute colonic pseudo-obstruction in selected cases. [ncbi.nlm.nih.gov]

Since computed tomography (CT) often reveals a sharp transition or "cut-off" between dilated and non-dilated bowel, the possibility of organic colonic obstruction must be [ncbi.nlm.nih.gov]

[…] crossing a dilated, centrally-located bowel; (2) Large bowel obstruction, with peripherally located dilated bowel segments Contrast fluoroscopy can also be useful in small [teachmesurgery.com]

Partial Intestinal Obstruction

[…] sounds Usually increased Usually absent Small bowel dilatation Present Present Large bowel dilatation Absent Present [learningradiology.com]

Dilated small and large bowel Hover on/off image to show/hide findings Tap on/off image to show/hide findings Dilated small and large bowel The entire large bowel is dilated [radiologymasterclass.co.uk]

Ileus

Small bowel dilation related to an ileus usually does not dilate as greatly as that seen in mechanical bowel obstruction. [undergradimaging.pressbooks.com]

Arrow: Area of obstruction Gall stone Ileus Air in Bile duct Dilated small bowel Gall stone is not seen in this film and may overlie the sacrum where the dilated bowel seems [meddean.luc.edu]

(a) Intraoperative findings showing dilated and non-dilated segments of bowel in the ileum. [academic.oup.com]

Partial Small Bowel Obstruction

[…] sounds Usually increased Usually absent Small bowel dilatation Present Present Large bowel dilatation Absent Present [learningradiology.com]

Jejunal Diverticulosis

[…] diverticula on axial CT images in the presence of dilated small bowel. [ajronline.org]

[…] and numerous dilated small bowel diverticula along the mesenteric border (white stars). [jbsr.be]

Workup of these symptoms included computed tomography, which showed small-bowel dilatation along with a whirl sign and numerous collateral veins, suggestive of a midgut volvulus [nejm.org]

Bowel Stenosis

The proximal bowel was dilated and the distal bowel collapsed ( Figure 3 ). [file.scirp.org]

This is in keeping with previous studies on DBE dilatation of small bowel strictures. [ncbi.nlm.nih.gov]

Antenatal bowel dilatation and in particular intraabdominal bowel dilatation is prognostically useful for detection of patients with worse outcome. [ncbi.nlm.nih.gov]

Volvulus

First you will notice that the small bowel is not dilated. [radiologyassistant.nl]

Bowel loops proximal to the site of obstruction were dilated and the distal loops were collapsed. Rest of the bowel was healthy. [bmcsurg.biomedcentral.com]

Dilated loops of small bowel were found, with a transition to decompressed small bowel at the midileum level. [jaoa.org]

Paralytic Ileus

Both patients had a roentgenographic picture of paralytic ileus showing fecal mass in the ascending colon and dilated bowel loops. [ncbi.nlm.nih.gov]

Bowel Obstruction / Ileus Dilated bowel may be from: Paralytic ileus Bowel obstruction What are the sites of bowel obstruction? [lumen.luc.edu]

Gallstone Ileus

The ultrasonography of abdomen revealed a decrease in bowel motion, and dilated bowel segments. [ncbi.nlm.nih.gov]

Abdominal X-ray demonstrated large bowel dilation. [ncbi.nlm.nih.gov]

A CBD stent was inserted at ERCP however a few days later the patient developed symptoms of bowel obstruction, and dilated small bowel was visible on an abdominal radiograph [svuhradiology.ie]

Rectal Obstruction

First you will notice that the small bowel is not dilated. [radiologyassistant.nl]

Intestinal Hypomotility

At post-mortem the small bowel was dilated and contained bloodstained mucus, particularly within the jejunum. [ncbi.nlm.nih.gov]

dilatated segments of bowel (including stomach): fetal bowel dilatation Ancillary sonographic features include: presence of polyhydramnios presence of normal amniotic volumes [radiopaedia.org]

Ultrasound  clockwise whirlpool sign  abnormal bowel  dilated duodenum proximal to obstruction  dilated fluid-filled loops of small bowel  free intra-abdominal fluid [slideshare.net]

Cecal Volvulus

First you will notice that the small bowel is not dilated. [radiologyassistant.nl]

Case Discussion The large loop of dilated bowel in the central abdomen is the volved cecum, with a resultant small bowel obstruction. [radiopaedia.org]

Results The most sensitive findings on plain film radiography were the presence of a disproportionately dilated bowel loop and a pattern of distal small bowel obstruction [elsevier.es]

Short Bowel Syndrome

Whether small bowel dilation in short bowel syndrome could influence the risk of liver injury through increased bacterial translocation remains unknown. [ncbi.nlm.nih.gov]

OBJECTIVE: To analyze risk factors and prognostic significance of small bowel (SB) dilatation in children with short bowel syndrome (SBS). [ncbi.nlm.nih.gov]

bowel. [ncbi.nlm.nih.gov]

Sigmoid Volvulus

Emergency laparotomy revealed a grossly dilated bowel with concurrent gangrenous sigmoid volvulus. [ncbi.nlm.nih.gov]

First you will notice that the small bowel is not dilated. [radiologyassistant.nl]

Plain abdominal x-ray indicating dilated bowel loops Figure 2. Abdominal scan indicating sigmoid volvulus Figure 3. [pubs.sciepub.com]

Colonic Atresia

Dilated bowel loops, but no pneumatosis or pneumoperitoneum. No gas within the rectum. 1 case question available Loading images... [radiopaedia.org]

dilated bowel, in the distribution of colon. [ispub.com]

The abdominal plain film showed a huge dilated bowel loop in the right and upper third of the abdomen, and the contrast enema revealed distal microcolon with arrest of the [fn.bmj.com]

Pneumatosis Cystoides Intestinalis

Assessment An abdominal radiograph, obtained while the patient was in the supine position, showed dilated bowel loops and a double wall sign (Figure 1A). [amjmed.com]

Assessment An abdominal radiograph, obtained while the patient was in the supine position, showed dilated bowel loops and a double wall sign. [amjmed.org]

[…] enhancement, dilated bowel, soft tissue stranding, ascites and the presence of portal air. [ncbi.nlm.nih.gov]

Atresia of Small Intestine

Antenatal ultrasonography had shown mild polyhydramnios and dilated bowel. [jscisociety.com]

The position of a dilated bowel loop is a poor predictor of whether or not it is small or large bowel. [fetalultrasound.com]

Ultrasound will indicate dilated (expanded) bowel before the blockage. [chop.edu]

Meconium Ileus

These four patients with ileal atresia had dilated loops of bowel filled with fluid and air. None had a dilated bowel filled with thick echogenic contents. [ncbi.nlm.nih.gov]

Plain radiograph Non-specific and may show dilated bowel loops proximal to the impaction. [radiopaedia.org]

In ileal atresia contrast medium does not reflux into the proximal dilated "atretic" bowel. [eurorad.org]

Meconium Plug Syndrome

bowel loops which are a non-specific finding. [radiopaedia.org]

[…] the dilated bowel above ( Figure 1c ). [aafp.org]

Abdominal inspection and palpation reveal dilated bowel loops. [symptoma.com]

Intestinal Atresia

[…] and progressive bowel dilatation occurring as a consequence of intestinal atresia. [ncbi.nlm.nih.gov]

However, there was no passage of contrast distally to the dilated bowel loop on delayed films. [nature.com]

In intestinal atresia, resection of the proximal dilated bowel segment, if long, might lead to bowel length compromise. [ncbi.nlm.nih.gov]

Congenital Peritoneal Adhesions

The erect abdominal radiograph showed dilated small bowel loops in the upper abdomen. [jmgims.co.in]

The proximal bowel loops were dilated [Fig.1]. Laboratory findings were within normal limits. [casereports.in]

Erect and supine abdominal radiographs demonstrated dilated small bowel loops and ultrasound of abdomen showed dilated fluid filled bowel loops with minimal ascites. [tropicalgastro.com]

Congenital Malrotation of the Colon

[…] the dilated bowel above ( Figure 1c ). [aafp.org]

Erect view showing dilated bowel in the left upper abdomen with two air fluid levels. [karger.com]

dilated and twisted along the ileocolic artery (fig. 2 ). [karger.com]

Meconium Peritonitis

bowel loop (one out of eight), a dilated bowel loop alone (one out of eight), and micro-colorectum (six out of eight). [ncbi.nlm.nih.gov]

Persistent ascites, pseudocyst or dilated bowel loop are most sensitive (92%) to predict postnatal surgery (p = 0.022). [ncbi.nlm.nih.gov]

The remaining two infants had no evidence of dilated bowel, meconium cyst, or ascites on postnatal radiograph and were fed uneventfully. [ncbi.nlm.nih.gov]

Gastroschisis

By establishing the significance of features, including extra- and intra-abdominal bowel dilatation, stomach herniation, stomach dilatation, bowel matting, growth restriction [ncbi.nlm.nih.gov]

The last ultrasonogram before delivery was reviewed to determine stomach dilatation, bowel dilatation, or abnormalities of amniotic fluid volume. [ncbi.nlm.nih.gov]

RESULTS: The only statistically significant predictor of complex cases of gastroschisis was extra-abdominal bowel dilatation. [ncbi.nlm.nih.gov]

Apple Peel Small Intestinal Atresia

Antenatal ultrasonography had shown mild polyhydramnios and dilated bowel. [jscisociety.com]

Diagnosis In the typical case, meconium peritonitis is featured b y the association of intra-abdominal echogenic area, dilated bowel loops and ascites. [sonoworld.com]

Types • Type I atresia (23%) is a transluminal septum with proximal dilated bowel in continuity with collapsed distal bowel. [slideshare.net]