Intraductal Papilloma of the Breast: A Case Report

Intraductal papilloma of the breast is a rare benign tumour. The polypoid lesions arising from the nipple surface include papillomas and fibroepithelial stromal polyps. These lesions must be distinguished from malignant nipple lesions, such as Paget’s disease of the nipple or malignant breast conditions involving the nipple. Solitary papillomas (solitary intraductal papillomas) are single tumours that often grow in the large milk ducts near the nipple. They are a common cause of clear or bloody nipple discharge, especially when it comes from only one breast, and can be felt as a small lump behind or next to the nipple. Papillomas may also be found in small ducts in areas of the breast farther from the nipple. Multiple papillomas, which are growths that are less prone to generate nipple discharge, were present in this case. In papillomatosis, there are very small areas of cell growth within the ducts, but they aren’t as distinct as papillomas are. In order to distinguish between these disorders, a thorough clinical examination and imaging are essential. This case report describes a 36-year-old female who presented with swelling from the left nipple. Sonography of the left breast revealed a dilated duct in the left retro-areolar region with a focal isoechoic component within the duct {American College of Radiology Breast Imaging Reporting and Data System (ACR BI-RADS 4B)}. The patient underwent core excision of the duct, and histopathological analysis confirmed the diagnosis of papilloma with changes of adenosis without atypia.