ABSTRACT
Intramural (within esophageal wall) Roentgen Signs ✓ Retention of barium paste ✓ Rigid esophageal wall ♥ Filling defect in barium caused by mass ✓ Acquired strictures can result from severe chronic esophagitis. Examples are
✓ Neoplasia ✓ Fibrosis ✓ Parasitic granuloma (Figure 5-9). Spirocerca lupi is a
parasite whose larvae migrate between the esophagus and aorta. Granuloma causes opacity in the caudo-dorsal thorax. Spondylosis may be seen along the caudal thoracic vertebrae.
