Gastro duodenal distention but distal gases
present.
On contrast– slow transit of contrast distally.
Small congenital obstructive membrane with
central aperture.
Failure of normal physloiogical herniation in
embryo
Leads to narrow mesenteric attachment.
Predisposes to rotation around superior
mesenteric vessels.
If untreated bowel ischemia & infarction.
Abnormal course of duodenum that fail to
cross midline has spiral appearance .
Intestinal ischemia during intra uterine life.
Present with bilous vomitting & abdominal
distention.
Distention of stomach ,duodenum &
jejunum.
LOW INTESTINAL OBSTRUCTION
Due to intra uterine ischemic insult.
Bilous vomiting & distention.
Numerous dilated bowel loops.
Meconium plugs obstruct colon & distal small
bowel.
Associated with cystic fibrosis.
AXR– multiple distended gut loops.
Contrast study—meconium plugs & micro
colon.
Meconium plug /small left colon syndrome.
Benign & self limiting condition.
Due to immaturity of colonic ganglion cells.
To infants of diabetic mothers & those who
took MgSO4 for pre eclampsia.
Contrast studies-
dilated ascending & transverse colon
small descending colon
rectum normal
Arrest of neuron migration to distal bowel
before 12
th
week.
rectosigmoid-75%
splenic flexure-20%
whole colon-5%
Affected segment narrowed.
Proximal dilatation.
Rarely an uncommon condition
Intra uterine vascular insult
Proximal to splenic flexure
Association with VATER
High/low depending levator ani muscle
Low –blind ending pouch.
High-associated with fistula to
bladder,urethra & vagina.