(See also Overview of Esophageal Obstructions Overview of Esophageal Obstructions The esophagus (the hollow tube that leads from the throat to the stomach) can be narrowed or completely obstructed (blocked). In most cases, the cause is Progression of an injury to the esophagus... read more .)
The esophagus Throat and Esophagus The throat (pharynx) lies behind and below the mouth. When food and fluids leave the mouth, they pass through the throat. Swallowing of food and fluids begins voluntarily and continues automatically... read more is the hollow tube that leads from the throat (pharynx) to the stomach.
Dysphagia lusoria is a birth defect. However, the swallowing difficulty may not appear until childhood or later in life, because that is when degenerative changes occur in the abnormally formed blood vessel.
A barium swallow X-Ray Studies of the Digestive Tract X-rays often are used to evaluate digestive problems. Standard x-rays ( plain x-rays) can show some blockages or paralysis of the digestive tract, or abnormal air patterns in the abdominal cavity... read more x-ray shows the compression, but angiography Angiography Angiography is a type of medical imaging that uses x-rays and a contrast agent to produce images of blood vessels. In angiography, x-rays are used to produce detailed images of blood vessels... read more (injecting a blood vessel with an agent that can be seen on x-rays) is necessary for an accurate diagnosis of dysphagia lusoria.
Most people require no treatment, but surgical repair is sometimes done.