Cystadenoma

**Definition:** A benign neoplasm derived from glandular epithelium, in which cystic accumulations of retained secretions are formed. In some instances, considerable portions of the neoplasm, or even the entire mass, may be cystic. (Stedman, 25th ed)

**Tree numbers:** - C04.557.470.035.320 - C04.557.470.590.485