The outline of the materials to be covered in this section:

1. Imaging Modalities
   1. Fluoroscopy (Barium Swallow, Upper GI)
   2. CT 
      
      
2. Anatomy
    
3. Congenital Anomalies
   1. Esophageal Duplication
   2. Tracheal-Esophageal Fistulas
       
4. Structural Abnormalities
   1. Schatzki ring
   2. Diverticula
   3. Varices
   4. Perforation
   5. Boerhaave's
   6. Malory Weiss
   7. Foreign Bodies 
   8. Food Impaction
       
5. Functional Abnormalities
   1. Achalasia
   2. Chagas' Disease
   3. Scleroderma
   4. Diffuse Spasms
   5. Strictures
       
6. Esophagitis
   1. Reflux Esophagitis
   2. Barrett's Esophagus
   3. Infectious Esophagitis
   4. Corrosive Esophagitis
   5. Radiation Esophagitis
       
7. Neoplastic Diseases 
   1. Leiomyoma 
   2. Squamous Cell Carcinoma
   3. Adenocarcinoma
   4. Metastases
      
      
8. Quiz