A benign epithelial neoplasm of the female reproductive system arising from mesonephric remnants. The disease is benign mesonephroma (MONDO_0024889). Also known as: Mesonephroma, benign, Mesonephroma, benign (morphologic abnormality), Wolffian duct adenoma, benign Mesonephroma, benign mesonephric neoplasm, mesonephric adenoma, mesonephric duct adenoma, mesonephric neoplasm, benign.