Eosinophilic esophagitis
Allergic esophageal inflammation marked by eosinophil infiltration.
Eosinophilic esophagitis (EoE) is an allergic inflammatory condition of the esophagus characterized by the presence of eosinophils, a type of white blood cell not normally found in the esophagus. First described in children, it also occurs in adults and is associated with symptoms such as swallowing difficulty, food impaction, vomiting, and heartburn.
- Field
- Gastroenterology, Allergy and Immunology
- Known for
- Allergic inflammatory condition of the esophagus involving eosinophils
- Symptoms
- Swallowing difficulty, food impaction, vomiting, heartburn
- Diagnosis
- Endoscopic biopsy with ≥15 eosinophils per high-power field
- Treatment
- Dietary elimination, immune-suppressing medication, endoscopic dilation
Lore & Background
Eosinophilic esophagitis was first described in children but is now recognized in all age groups, with symptoms varying by age. In young children, feeding difficulties and poor weight gain are common; school-aged children and adolescents often experience difficulty swallowing, food impaction, and choking with coarse foods. Adults predominantly report difficulty swallowing, intractable heartburn, and food avoidance, and they tend to have more episodes of esophageal food impaction due to long-standing inflammation and scarring. The condition is more common in males and is often associated with other autoimmune and allergic diseases such as asthma, celiac disease, and mast cell disorders.
Reader's Guide
Eosinophilic esophagitis is significant as a relatively recently recognized condition that bridges allergy and gastroenterology. Its pathophysiology involves antigen exposure triggering a hyperactive immune response, with eosinophils migrating to the esophagus and causing tissue damage. Diagnosis requires endoscopic biopsy showing at least 15 eosinophils per high-power field, after excluding other causes such as GERD, achalasia, and Crohn's disease. Treatment includes dietary management, such as the six-food elimination diet, medications to suppress the immune response, and endoscopic dilation for severe strictures. The condition is poorly understood, but food allergy is thought to play a significant role. Its recognition has grown rapidly, though diagnosis remains challenging due to nonspecific symptoms and histopathologic findings. EoE highlights the complex interplay between environmental triggers, genetic susceptibility, and immune dysregulation in esophageal disease.
Did You Know?
- Eosinophils are normally absent from the healthy esophagus but migrate there in large numbers in EoE.
- The condition was first described in children but also occurs in adults.
- A minimum of 15 eosinophils per high-power field on biopsy is required for diagnosis.
- Many people with EoE have other autoimmune and allergic diseases such as asthma and celiac disease.
Frequently Asked Questions
Who is Eosinophilic esophagitis?
EoE is a chronic allergic inflammatory disorder that targets the esophagus, driven by an abnormal buildup of eosinophils—white blood cells that don't normally reside in that tissue. It was first identified in pediatric patients but is now well recognized across all age groups.
What are Eosinophilic esophagitis's powers/role?
Its primary 'abilities' manifest as progressive swallowing difficulty, food getting stuck in the esophagus, recurrent vomiting, and persistent heartburn-like discomfort. These symptoms stem from the eosinophil-driven inflammation thickening and stiffening the esophageal lining over time.
Why is Eosinophilic esophagitis important?
It sits at the intersection of gastroenterology and allergy/immunology, representing a major cause of food impaction in both children and adults. Recognizing it prevents misdiagnosis as simple acid reflux and guides patients toward the right combination of dietary and pharmacologic interventions.
How do you confirm Eosinophilic esophagitis's identity?
The definitive 'reveal' comes from an endoscopic biopsy showing fifteen or more eosinophils per high-power field in the esophageal tissue. This histologic threshold distinguishes EoE from other causes of esophageal inflammation.
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