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京东 11.11 红包
20220328 嗜酸性食管炎(Eosinophilic esophagitis)
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Eosinophilic esophagitis Pathophysiology The exact etiology is unknown. Exposure to food or allergen triggers the activation of eosinophils within the esophageal wall, resulting in inflammatory cascade. Epidemiology It most commonly affects males ages 20 to 40. The prevalence is estimated to range from 0.5 to 1 in 1,000. Clinical presentation Patients typically present with dysphagia or with food stuck in the esophagus. Patients usually have a specific alimentary or allergenic trigger. Symptoms may persist long after exposure. Imaging features Fluoroscopy: "Ringed" esophagus: Concentric, ringlike strictures of the esophagus are visible on a barium swallow. Ringlike strictures may co-occur with longer segment strictures and may be associated with esophageal spasm, dysmotility, and foreshortening. Treatment The condition may be self-limiting in some cases. Eosinophilic esophagitis responds well to oral or inhaled glucocorticoid therapy.
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