Small bowel obstruction - bezoar
Colicky abdominal pain, nausea and vomiting since 2 days ago
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Dilated proximal two-third of small bowel loops with the collapsed distal ileal loop is seen in favor of partial mechanical obstruction. A porous intraluminal oval filling defect (red arrow) is seen just before the transitional zone in favor of bezoar as the cause. No sign of close loop formation, strangulation or perforation is still detected.
Patient underwent conservative management and obstruction signs were resolved after the CT scan. Resolution of partial obstruction after CT scan with ingestion of oral contrast agent is common because of osmotic pressure created by the ingested contrast agent.