neoplasm of esophagus (MONDO_0021355, a Monarch Disease Ontology term) is a neoplasm (disease) that involves the esophagus. Also known as: esophageal neoplasm, esophageal neoplasms, benign and malignant, esophageal tumor, esophageal tumors, esophageal tumour, esophageal tumours, esophagus neoplasm, esophagus neoplasm (disease).