Which feature is most consistent with esophageal carcinoma rather than achalasia?

• A. Intermittent dysphagia
• B. Dysphagia to liquids first
• C. Heartburn
• D. Progressive dysphagia with weight loss and smoking history

Answer: (D)

Distinguishing esophageal cancer from achalasia hinges on how dysphagia presents and what systemic features accompany it. Esophageal cancer typically causes progressive narrowing of the lumen, starting with difficulty swallowing solids and then advancing to liquids as the obstruction grows. This pattern often comes with weight loss and occurs in people with risk factors like smoking. Achalasia, by contrast, is a motility problem where the esophagus has trouble coordinating smooth muscle movement and the lower esophageal sphincter fails to relax; it usually produces both solids and liquids dysphagia from the beginning, along with regurgitation of undigested food and a dilated, nondilated esophagus on imaging—not primarily weight loss.

Among the options, the feature that best fits esophageal carcinoma is progressively worsening dysphagia accompanied by weight loss and a smoking history. The other options describe patterns more typical of motility disorders or nonspecific symptoms rather than the malignant obstruction that characterizes cancer.