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Intraductal papillomas of the breast are benign lesions with an incidence of approximately 2-3% in humans. [1] They result from abnormal proliferation of the epithelial cells lining the breast ducts. [2] Two types of intraductal papillomas are generally distinguished. The central type develops near the nipple.
The microscopic appearance of a nipple adenoma can be mistaken for carcinoma. [1] Other conditions that have similar symptoms and signs as nipple adenoma include Paget's disease of the breast, other intraductal papillomas, ductal carcinoma in situ (DCIS), syringomatous adenoma of the nipple and subareolar sclerosing duct hyperplasia.
A papilloma (plural papillomas or papillomata) (papillo-+ -oma) is a benign epithelial tumor [1] growing exophytically (outwardly projecting) in nipple-like and often finger-like fronds. In this context, papilla refers to the projection created by the tumor, not a tumor on an already existing papilla (such as the nipple).
Intraductal papillary mucinous neoplasm (IPMN) is a type of tumor that can occur within the cells of the pancreatic duct. IPMN tumors produce mucus, [1] and this mucus can form pancreatic cysts. [2] Although intraductal papillary mucinous neoplasms are benign tumors, they can progress to pancreatic cancer. [1]
Intraductal papillomas are non-cancerous lesions and commonest in women age 30 to 50. Divided into central and peripheral papillomas, nipple discharge is more frequently observed when they are central. [10] Up to half of women with intraductal papillomas may present with bloody nipple discharge, but it can also be straw-coloured. [4]
M8453/0 Intraductal papillary-mucinous adenoma (C25._) M8453/1 Intraductal papillary-mucinous tumor with moderate dysplasia (C25._) M8453/2 Intraductal papillary-mucinous carcinoma, non-invasive (C25._) M8453/3 Intraductal papillary-mucinous carcinoma invasive (C25._) M8454/0 Cystic tumor of atrio-ventricular node (C38.0)
Phullon means 'leaf' in Greek. It is appropriately named to describe the characteristic papillary projections seen on histology in phyllodes tumors. Phyllodes tumors (from Greek: phullon), are a rare type of biphasic fibroepithelial mass that form from the periductal stromal and epithelial cells of the breast. [1]
Florid cutaneous papillomatosis (FCP) is an obligate paraneoplastic syndrome. FCP begins as the sudden onset of numerous cutaneous papillomas that are clinically indistinguishable from viral warts. The papillomas range from 1 to 3 mm in diameter may spread to involve the entire body, including the face.