Example image of eyePlorer eyePlorer map for 'Esophagectomy': Esophagus Human gastrointestinal tract Tumor Esophageal cancer Chemotherapy Radiation therapy Achalasia Caustic Esophageal atresia Abdomen Neck Thorax Stomach Colon (anatomy) Laparoscopic surgery Upper gastrointestinal surgery Airway Anesthesia Lung Peptic Barrett's esophagus ICD-9-CM Volume 3 Theodor Billroth Heller myotomy THE Squamous cell carcinoma Jayant Patel