Eosinophilic oesophagitis (EoO) is a chronic immune-mediated/allergen-mediated condition defined clinically by symptoms of oesophageal dysfunction, and pathologically by an eosinophilic infiltration of the oesophageal epithelium in the absence of secondary causes of local or systemic eosinophilia.
To consider the diagnosis, there must be an oesophageal epithelial infiltrate of ≥15 eosinophils per high-power microscopy field on oesophageal biopsy.
Incidence and prevalence are increasing at a rate that is outpacing increased recognition and diagnosis; it is more commonly seen in children and young adults.
Medications (usually topical/swallowed corticosteroids) or dietary elimination can be used as a first-line treatment, with endoscopic dilation reserved for patients with oesophageal strictures or fibrostenotic complications.
Prognosis is good, with the majority of patients having a good response to either pharmacological or dietary elimination therapy.
Eosinophilic oesophagitis (EoO) is a chronic, immune-mediated/allergen-mediated clinicopathological condition. It is characterised clinically by symptoms of oesophageal dysfunction (e.g., dysphagia and food impaction in adolescents and adults, and vomiting, regurgitation, heartburn, abdominal pain, failure to thrive, or feeding intolerance in children), and histologically by an eosinophilic infiltration of the oesophageal epithelium of ≥15 eosinophils per high-power microscopy field in the absence of other causes of local or systemic eosinophilia. The condition is also abbreviated to EoE (eosinophilic esophagitis).
History and exam
Key diagnostic factors
- presence of risk factors
- food avoidance and modification behaviours
Other diagnostic factors
- chest discomfort
- abdominal pain
- failure to thrive
- family history of EoO
- male sex
- atopic disease
- children and younger adults
- white ancestry
1st investigations to order
- oesophageal biopsy
- FBC with differential
- transnasal endoscopy
- oesophageal string test
- mucosal impedance
- EoO diagnostic panel
at initial diagnosis
response to initial therapy
non-response or relapse
- Gastro-oesophageal reflux disease (GORD)
- Eosinophilic gastroenteritis
- Guideline on informed consent for GI endoscopic procedures
- Clinical guidelines for the management of eosinophilic esophagitis
- Log in or subscribe to access all of BMJ Best Practice
Use of this content is subject to our disclaimer