label: Pulmonary Mucinous Cystic Tumor of Borderline Malignancy
label_lc: pulmonary mucinous cystic tumor of borderline malignancy
description: A very rare, non-invasive epithelial neoplasm that arises from the lung. It is composed of multilocular cysts filled with mucus. The cysts are lined with columnar mucinous epithelium. Focal cellular atypia is present.