label: Borderline Paratesticular Mucinous Tumor
label_lc: borderline paratesticular mucinous tumor
description: A rare, non-invasive, mucinous cystic tumor that arises from the paratesticular structures. It is characterized by the presence of irregular papillary formations with irregular branching. The papillae are lined by atypical mucinous epithelial cells. Metastases have not been reported.