An adenocarcinoma containing finger-like processes of vascular connective tissue covered by neoplastic epithelium, projecting into cysts or the cavity of glands or follicles. It occurs most frequently in the ovary and thyroid gland. (Stedman, 25th ed)

Synonyms: Adenocarcinomas, Papillary, Papillary Adenocarcinomas, Papillary Adenocarcinoma, Adenocarcinoma, Papillary