- A histologically 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. SYN: cystoadenoma.- papillary c. lymphomatosum SYN: adenolymphoma.
* * *cyst·ad·e·no·ma .sis-.tad-ən-'ō-mə n, pl -mas also -ma·ta -mət-ə an adenoma marked by a cystic structurecyst·ad·e·no·ma·tous -mət-əs adj
* * *n.an adenoma showing a cystic structure.
* * *cys·tad·e·no·ma (sis″tad-ə-noґmə) [cyst- + adenoma] adenoma characterized by epithelium-lined cystic masses that contain secreted material, usually serous or mucinous; it generally occurs in the ovary, salivary glands, skin adnexa, or pancreas. Called also adenocystoma.
Medical dictionary. 2011.