Intraductal papilloma is a small, noncancerous (benign) tumor that grows in a milk duct of the breast.
Intraductal papilloma occurs most often in women ages 35 to 55. The causes and risk factors are unknown.
These findings may be in just one breast or in both breasts.
For the most part, these papillomas do not cause pain.
The health care provider might feel a small lump under the nipple, but this lump cannot always be felt. There may be discharge from the nipple. Sometimes, an intraductal papilloma is found on a mammogram or ultrasound, and then diagnosed by a needle biopsy.
If there is a mass or nipple discharge, both mammogram and ultrasound should be performed.
If these are normal, then breast MRI is sometimes recommended. If the MRI is normal, a needle or surgical biopsy may be performed to rule out cancer.
An intraductal papilloma is diagnosed on needle or surgical biopsy.
If there is nipple discharge, the duct is removed with surgery if imaging did not show a lump that can be checked with a needle biopsy. If a needle biopsy shows an intraductal papilloma, the papilloma may be removed with surgery, or watched over time with exams and imaging.
For the most part, intraductal papillomas do not appear to increase the risk of developing breast cancer.
The outcome is excellent for people with one papilloma. The risk for cancer may be higher for:
Complications of surgery can include bleeding, infection, scarring, and anesthesia risks. If the biopsy shows cancer, you may need further surgery and treatment.
Call your provider if you notice any breast discharge or a breast lump.
Davidson NE. Breast cancer and benign breast disorders. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 188.
Klimberg VS, Hunt KK. Diseases of the breast. In: Townsend CM Jr, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 21st ed. Philadelphia, PA: Elsevier; 2022:chap 35.
Sasaki J, Geletzke, Kass RB, Klimberg VS, et al. Etiology and management of benign breast disease. In: Bland KI, Copeland EM, Klimberg VS, Gradishar WJ, eds. The Breast: Comprehensive Management of Benign and Malignant Disorders. 5th ed. Philadelphia, PA: Elsevier; 2018:chap 5.BACK TO TOP
Review Date: 11/6/2021
Reviewed By: Debra G. Wechter, MD, FACS, General Surgery Practice Specializing in Breast Cancer, Virginia Mason Medical Center, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Health Content Provider
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- 2022 A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.