Achalasia
Upper esophageal diverticulum
Pancreas adenocarcinoma - uncinate process
Small bowel perforation - penetrating foreign body
Rathke's cleft cyst
Patellar fracture
Anastomotic stricture post Ivor Lewis esophagectomy
Acute cholecystitis with contained perforation
Reflux of contrast material into the seminal vesicles
Caudal epidural injection
Idiopathic intracranial hypertension
Vena cava filter
Ureterolithiasis
Epiphrenic diverticulum
Jejunal diverticula
Duodenojejunal flexure - normal position
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