A Rare Case of Esophageal Leukoplakia in Achalasia

Esophageal leukoplakia refers to a clinical finding of a white patch on the mucous membrane surface that cannot be scraped off. It has been associated with alcohol and tobacco use and chronic acid reflux. An association with squamous cell dysplasia and carcinoma has been reported with potential for malignant transformation warranting endoscopic intervention or surveillance, but no guidelines exist. We present a case of a 77-year-old female with a history of longstanding achalasia requiring multiple Botox injections. After presenting with weight loss, esophageal dysphagia, and acid reflux the patient underwent an esophagogastroduodenoscopy (EGD) showing a 20 mm white plaque in the middle third of the esophagus and histopathology consistent with esophageal leukoplakia. After repeated Botox injection and treatment with PPI and H2 blocker, no findings of esophageal leukoplakia were noted on repeat EGD. With this case, we aim to increase awareness of this rare disease pathology, especially in the setting of underlying achalasia. This case also raises the question if maximum anti-reflux therapy could have a potential benefit in avoiding the recurrence of esophageal leukoplakia.