Monarch Disease Ontology entry MONDO_0004192 (urethra cancer) is a malignant neoplasm involving the urethra. Also known as: cancer of urethra, malignant neoplasm of the urethra, malignant neoplasm of urethra, malignant tumor of the urethra, malignant tumor of urethra, malignant tumour of the urethra, malignant tumour of urethra, malignant urethra neoplasm.