Small bowel seriesSmall bowel series

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Small Bowel•Duodenum•Jejunum•Ileum

Large Intestine

•cecum

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The small intestine is the portion of the digestive system most responsible for absorption of nutrients from food into the bloodstream. The pyloric sphincter governs the passage of partly digested food from the stomach into the duodenum. This short first portion of the small intestine is followed by the jejunum and the ileum. The ileocecal valve of the ileum passes digested material into the large intestine.

Small intestine

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Ascending (4th) part of duodenum

SMA

Superior (1st) part of duodenum

Descending (2nd) part of duodenum

Horizontal (3rd) part of duodenum

Duodenojejunal flexure

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Autopsy-7M

Life-4.5~5M•Duoodenum

Shortest ， widest ， 25cm ， c-shape

•Jejunum2/5 ， coiled spring ， feathery

•Ileum3/5 ， smoother

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Multiple diverticulum over jejunum

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Diverticulum at the 2nd portions of the duodenum.

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Duodenal diverticulum, second portion

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Edematous change of mucosal fold & wall thickness; Partial obstruction over ileumPoor peristasis of small bowel, consistent with adhesion.

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Obstruction-case 1

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2

Disproportional dilatation of jejunum ， suggest obstruction

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The obstruction level should be around distal jejunum

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Obstruction-case 3

20157972

NG placed in duodenum

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There is extrinsic compression at distal third portion of duodenum ， probable due to vascular indentation

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Multiple segmental narrowing with mucosal tethering of bowel loops and nodularity outline at ileum. Peritonea carcinomatosis is considered. The barium flow is partially obstructed ， but still patent.

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After 6 hours ， the barium flow passed through the ileum into the right side colon. The opacified right side colon is dilatated with compression to the descending portion of duodenum at hepatic flexure

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Obstruction-case 4

92028879

Disproportional dilatation of small intestine, suggestive of intestinal obstruction, more dilated proximal jejunum is foundThe obstructive level may be at proximal jejunumCollapsed distal bowel loops without opacification by barium

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Smooth margin filling defect in the cecum. D/D cecal tumor or postappendectomy change

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Soft tissue mass over LUQ area with mass effect to stomach and bowel loops noted

Mass effect-case 2

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An ovoid filling defect within the lumen of the 2nd portion of the duodenum; c/w duodenal tumor.

Mass effect-case 3

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Mass effect-case 4

. Diffuse dilated duodenum and proximal jejunum

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Persistent, long segmental luminal narrowing at the proximal jejunum with "beak" appearance of the proximal small bowel, malignancy like jejunal Ca. is considered

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Marked dilatation of small bowel loops (mainly are jejunum) with contrast medium stasis during the procedure.Intestinal partial obstruction at jejunum, r/o adhesion.

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Fistula formation (vagina and ileum) at RLQ

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A large intraluminal round filling defect in 2nd portion of the duodenum, R/O duodenal tumor or polyps.Multiple nodularities of the jejunum, highly suspecting multiple polyps.

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Extravasation of the contrast material from duodenal bulb into a blind pouch in the right upper abdomen,perforation of duodenal bulb is consideredPerforation in the duodenal bulb with a space of contrast pooling in the right upper abdomen.

6377989

Small bowel seriesSmall bowel series6377989

Extravasation of the contrast material from duodenal bulb into a blind pouch in the right upper abdomen,perforation of duodenal bulb is consideredPerforation in the duodenal bulb with a space of contrast pooling in the right upper abdomen.

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Deformed duodenal bulb with a big ulcer.

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Ulcer-case 2

92093868

A small ulcer at the lesser curvature of the mid gastric body.

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