Gastric Diverticulum

Imaging

• Most (> 75%) are congenital, juxtacardiac diverticula

  • Near gastroesophageal junction, on posterior aspect of lesser curvature of stomach

• Usually 1-3 cm, up to 10 cm in diameter

• On upper GI series

  • Barium-filled diverticulum with air-fluid level

• CT findings

  • Often in left suprarenal location

    • –

      Mimics adrenal or pancreatic mass

  • Connection to stomach may be subtle

  • Air-filled, fluid-filled, or contrast-filled mass

  • No enhancement of contents