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Overview
What Is an Esophageal Diverticulum?
An esophageal diverticulum is an abnormal pouch or sac that protrudes from the wall of the esophagus, the tube that carries food from your mouth to your stomach. The pouch may collect food or liquid as you swallow. Some people have no symptoms, while others develop swallowing or regurgitation problems. This diverticulum meaning is the same as a pouch in the esophagus.
Types are distinguished by where they occur and how they form. A pharyngoesophageal, or Zenker’s, diverticulum develops near the throat; mid-esophageal diverticula occur in the middle portion; and epiphrenic diverticula form near the diaphragm. They may be present because of a structural weakness or develop later in life.
Symptoms
Symptoms of an Esophageal Diverticulum
- Difficulty swallowing (dysphagia) may occur when food does not pass smoothly.
- Food or liquid may come back up into the mouth (regurgitation).
- Bad breath (halitosis) can develop when food remains in the pouch.
- A cough may occur during or after swallowing.
- Choking can happen when food or liquid enters the airway.
- Chest discomfort may occur as food or liquid collects in the pouch.
- Gurgling in the neck may be noticeable with an upper pouch such as Zenker’s diverticulum.
- Unintended weight loss can occur when swallowing problems persist.
Causes
Causes and Types
An esophageal diverticulum can form when pressure inside the esophagus pushes its inner lining through a weak area of the wall. Nearby inflammation or scarring can also pull the wall outward and create a pouch. Rarely, a congenital weakness present from birth contributes to its development.
| Type | Typical location | How it forms or associated finding |
|---|---|---|
| Zenker's diverticulum | Upper esophagus near the throat | Usually a pressure-related pouch associated with impaired upper esophageal muscle relaxation |
| Mid-esophageal diverticulum | Middle portion of the esophagus | May be associated with traction from nearby inflammation or a pressure-related weakness |
| Epiphrenic diverticulum | Lower esophagus near the diaphragm | Often associated with abnormal esophageal movement and increased internal pressure |
An esophageal diverticulum is different from an esophageal web, which is a thin membrane that narrows part of the esophagus. It is also different from a gastric or stomach diverticulum, which involves a pouch in the stomach rather than the esophagus.
Risk Factors
Risk Factors
- Older age is associated with a higher likelihood of developing an esophageal diverticulum.
- Disorders that affect esophageal movement can increase pressure and impair emptying.
- Long-standing swallowing-muscle dysfunction may contribute to pouch formation.
- Increased pressure during swallowing can push the inner lining through a weak area.
- Inflammation or scarring near the esophagus may pull its wall outward.
- A rare congenital structural weakness can be present from birth.
Many risk factors are not personally controllable, and having one does not mean you will develop a diverticulum. The focus should be on evaluating and treating associated swallowing or motility disorders rather than on blame. Your clinician can help determine whether a contributing condition needs attention.
Complications
Possible Complications
- Food or liquid may enter the airway, causing aspiration.
- Repeated aspiration can lead to chest infections or aspiration pneumonia.
- Difficulty swallowing can cause dehydration.
- Poor intake may lead to malnutrition or unintended weight loss.
- Irritation or injury may cause bleeding.
- Food retention can cause inflammation in or around the pouch.
- Rarely, the esophagus or pouch may perforate.
- Very rarely, a tumor may arise in the pouch.
Get urgent help
Warning signs need prompt medical attention
Seek urgent medical care for choking that does not clear, severe breathing difficulty, coughing or vomiting blood, sudden severe chest pain, or fever and breathing symptoms after food or liquid enters the airway.
Diagnosis
Diagnosis
Clinicians review swallowing and regurgitation symptoms, your medical history and examination findings before selecting tests. They may ask about coughing during meals, food sticking, weight changes and repeated chest infections.
- A barium swallow or esophagram outlines the pouch and shows how swallowing moves contrast through the esophagus.
- Upper endoscopy lets a clinician inspect the esophagus and rule out other causes of swallowing symptoms.
- Esophageal manometry measures movement and pressure when a motility or pressure disorder is suspected.
Test selection depends on the suspected location of the diverticulum, your symptoms and plans for treatment. Clinicians may also assess aspiration or nutritional effects when indicated.
Treatment & Management
Treatment and Management
Treatment depends on symptoms, pouch size and location, aspiration risk, esophageal movement and overall health. Small, symptom-free diverticula may be monitored, while persistent or complicated disease generally needs specialist treatment. The best diverticulum treatment plan also addresses any related swallowing or motility disorder.
| Approach | When it may be used | What it involves |
|---|---|---|
| Observation and swallowing guidance | Few or no symptoms and low complication risk | Monitoring, careful eating or texture changes, and treatment of contributing swallowing disorders |
| Endoscopic treatment | Many symptomatic upper or selected lower diverticula | Access through the mouth to open the shared wall or pouch outlet and improve emptying |
| Surgery | Large, complex, recurrent or unsuitable diverticula | Repair or remove the pouch and address the underlying muscle or structural problem |
Follow individualized swallowing and nutrition advice after treatment. Report recurrent difficulty swallowing, regurgitation, choking or weight loss so your care team can reassess the pouch and the underlying problem. Esophageal diverticulum surgery or an endoscopic procedure may require planned follow-up.
Outlook and Prognosis
Outlook and Prognosis
Many people improve when swallowing obstruction, food retention and the underlying motility problem are addressed. Symptom-free diverticula may remain stable with monitoring. The outlook depends on whether the pouch continues to trap food or cause aspiration.
Factors that influence prognosis include pouch size and location, aspiration or nutritional complications, overall health and whether an associated esophageal movement disorder persists. An epiphrenic diverticulum, for example, may need evaluation for an underlying motility problem before treatment decisions are made.
When Should You See a Doctor
When Should You See a Doctor?
Arrange a medical appointment for persistent or worsening difficulty swallowing, food coming back up, unexplained weight loss, recurring cough during meals, bad breath with regurgitation or repeated chest infections. These symptoms can occur with Zenker’s diverticulum symptoms or other swallowing conditions and deserve evaluation.
Symptoms
1 topic
Esophageal Diverticulum
Difficulty Swallowing
