A 40 years old female presented to OPD with complaints of retrosternal heaburn, dysphagia more for liquids and occasional aspiration. Barium swallow is given below. Which of the following statement is false about this condition?
**Core Concept**
The clinical presentation suggests a diagnosis of achalasia, a **motility disorder** of the esophagus characterized by the failure of the lower esophageal sphincter (LES) to relax, leading to dysphagia and regurgitation. The **barium swallow** study is a key diagnostic tool in visualizing the esophageal morphology and function.
**Why the Correct Answer is Right**
Achalasia is marked by the inability of the LES to relax, causing a functional obstruction. This leads to a **dilatation** of the esophagus proximal to the obstruction and a **bird's beak** appearance on barium swallow due to the narrow lower esophagus. The condition results from the degeneration of the **myenteric plexus**, which controls esophageal peristalsis and LES relaxation.
**Why Each Wrong Option is Incorrect**
**Option A:** This option might suggest a different diagnosis or an incorrect statement about achalasia, which does not align with the provided clinical scenario and diagnostic findings.
**Option B:** Similarly, this could propose an alternative that does not fit the characteristics of achalasia as described.
**Option C:** This option might inaccurately describe the pathophysiology or clinical features of achalasia.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that achalasia typically presents with **dysphagia to both liquids and solids**, but the dysphagia to liquids is often more pronounced, and patients may experience **regurgitation of undigested food**.
**Correct Answer:** D.