CASE 104

History: A 53-year-old man presents with dysphagia since childhood.

1. Which of the following should be included in the differential diagnosis of the imaging finding shown in the figures? (Choose all that apply.)

A. Cervical web

B. Radiation therapy

C. Caustic ingestion

D. Nasogastric intubation

E. Squamous cell carcinoma

2. Ingestion of which of these caustic agents produces the worst outcomes?

A. Acid

B. Alkali

C. Bleach

D. Batteries

3. What is the potentially fatal complication of esophageal corrosive injury?

A. Adenocarcinoma

B. Barrett’s esophagus

C. Squamous cell carcinoma

D. Tracheoesophageal fistula

4. Which of the following obstructive lesions of the esophagus is usually not found in the proximal or mid esophagus?

A. Achalasia

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