A malignant neoplasm involving the external ear. The disease is Monarch Disease Ontology entry MONDO_0003574 (external ear cancer). Also known as: cancer of external ear, malignant external Ear neoplasm, malignant external Ear tumor, malignant external Ear tumour, malignant external ear neoplasm, malignant neoplasm of external Ear, malignant neoplasm of external ear, malignant neoplasm of the external Ear.