A benign or malignant neoplasm affecting the vagina. Representative examples of benign neoplasms include squamous papilloma and melanocytic nevus. Representative examples of malignant neoplasms include carcinoma, melanoma, and sarcoma. The disease is vaginal neoplasm (Monarch Disease Ontology entry MONDO_0021050). Also known as: neoplasm of the vagina, neoplasm of vagina, tumor of the vagina, tumor of vagina, tumour of the vagina, tumour of vagina, vagina neoplasm, vagina neoplasm (disease).