A 44-Year-Old Female With Dysphagia Presenting a Thin Muscle Thickness on High-Frequency Intraluminal Ultrasound

CC This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Figure 1. Upper endoscopy. Retained fluid is found in the distal esophagus and powerful contractions are observed on the esophagogastric junction. Figure 2. Esophagogram. This view shows the typical findings of achalasia: dilated aperistaltic esophagus and beaklike narrowing near the esophagogastric junction. A 44-year-old female visited the Digestive Disease Center for the evaluation of dysphagia. She complained of severe dysphagia to both solids and liquids for 5 years. Additionally, she regur-gitated for 3 years and lost 10 kg for a year. On upper endoscopic finding, the esophageal mucosa appeared to be normal, but there was retained fluid in the distal esophagus and severe contractions leading to resistance in advancing the scope to esophagogastric junction (Fig. 1). Esophagogram showed the dilated aperistaltic