esophageal cancer (Monarch Disease Ontology term MONDO_0007576) is a primary or metastatic malignant neoplasm involving the esophagus. Also known as: cancer of esophagus, cancer of oesophagus, esophageal cancer, somatic, esophageal carcinoma, somatic, esophageal squamous cell carcinoma, somatic, esophagus cancer, malignant esophageal neoplasm, malignant esophageal tumor.