Gastric Antral Vascular Ectasia
Differential Diagnosis
| Portal Hypertensive Gastropathy |
Gastric Antral Vascular Ectasia |
| Involves fundus and corpus |
Involves antrum |
| Endoscopic diffuse changes |
Endoscopic longitudinal stripes |
| Secondary to cirrhosis |
May be associated with cirrhosis |
| No microthrombi |
Microthrombi characteristic |
| No fibromuscular change or hyalinization in lamina propria |
Fibromuscular hyperplasia with hyalinization of lamina propria |
| Atrophic Autoimmune Gastritis |
Gastric Antral Vascular Ectasia |
| Lacks endoscopic stripes |
Endoscopic watermelon stripes |
| Unremarkable capillaries |
Prominent capillary ectasia |
| No microthrombi |
Microthrombi characteristic |
| No fibromuscular change or hyalinization in lamina propria |
Fibromuscular hyperplasia with hyalinization of lamina propria |
Atrophic autoimmune gastritis may be associated with GAVE, so no features of AAG exclude the diagnosis of GAVE.
| Dieulafoy Lesion / Caliber Persistent Artery |
Gastric Antral Vascular Ectasia |
| Abnormaly large vessel in lamina propria |
Capillary ectasia and thrombosis in lamina propria |
| No specific submucosal lesion |
Submucosal vessels may be tortuous |
| No microthrombi |
Microthrombi characteristic |
| Lamina propria normal except for large vessels |
Fibromuscular hyperplasia with hyalinization of lamina propria |
Similar histologic features may be seen in gastric hyperplastic polyps but clinical correlation will avoid any problems
