KEY FACTS Terminology Ingestion of disc-shaped battery, typically by young child Increasingly of more injurious lithium cell type Esophagus particularly susceptible to injury by lodged battery with potentially catastrophic consequences Imaging Frontal radiograph: Margin shows double halo/ring en face Lateral…
KEY FACTS Imaging Disc-shaped metallic density without circumferential beveled edge/step-off Most common sites of impaction Upper esophagus at thoracic inlet Midesophagus at aortic arch impression Lower esophageal sphincter at gastroesophageal junction Other sites of impaction include pylorus, duodenum, ileocecal valve…
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KEY FACTS Terminology Hypertrophic pyloric stenosis (HPS): Idiopathic pyloric muscle thickening in young infants → progressive gastric outlet obstruction Imaging Near complete gastric outlet obstruction due to abnormally elongated & thickened pyloric muscle Pylorus fails to relax/open → minimal gastric…
KEY FACTS Terminology Necrotizing enterocolitis (NEC): Life-threatening condition of neonatal GI tract characterized by inflammation, ischemia, & translocation of bacteria into bowel wall Imaging Diagnosis based on clinical & imaging findings Mainstay of imaging for suspected NEC: Radiography Findings range from…
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KEY FACTS Terminology Congenital disorder of enteric nervous system: Absence of ganglion cells in intestinal myenteric & submucosal plexus Lack of peristalsis → functional bowel obstruction Aganglionic segment extends retrograde from anus for variable length with gradual transition to normal…
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