Cystadenoma
Micrograph showing apancreatic serous cystadenoma, a type of cystadenoma.H&E stain.
Specialty	Oncology

Cystadenoma is a type ofcysticadenoma. Whenmalignant, it is called cystadenocarcinoma.

When not otherwise specified, theICD-O coding is 8440/0. However, the following classifications also exist:

• serous cystadenoma (8441-8442)
• papillary cystadenoma (8450-8451, 8561)
• mucinous cystadenoma (8470-8473)

• Bile duct cystadenoma (8161) or biliary cystadenoma is a slow-growing tumour arising from bile ducts of the liver. The presence of endocrine cells in the tumour also indicates its origin from the glands surrounding the bile ducts. The incidence is 1–5 in 100,000 people. Females are affected more than males at 9:1 ratio. Mean age of presentation is at 45 years old. About 30% of biliary cystadenoma can progressively become malignant over time.^[1]
• Endometrioid cystadenoma (8380)
• Appendix: The termmucinous cystadenoma is an obsolete term forappendiceal mucinous neoplasm^[2]

The term "cystadenoma" may also refer to ahidrocystoma.^[3]

• Warthin's tumor

• Serous cystadenoma of pancreas ateMedicine
• Biliary cystadenoma/cystadenocarcinoma ateMedicine

• Glandular and epithelial neoplasia

• Articles with short description
• Short description is different from Wikidata