A Huge Mass in the Upper Esophagus

Question: A 56-year-old man with a history of mild dysphagia for 4 months experienced worsening of his symptoms when he caught a cold or was tired, but without nausea, vomiting, acid reflux, abdominal pain, or bloating. He had no history of diabetes mellitus, hypertension, or heart disease, and did not smoke or drink alcohol. Physical examination was unremarkable.
Source: Gastroenterology - Category: Gastroenterology Authors: Tags: Electronic Clinical Challenges and Images in GI Source Type: research