Ductal carcinoma in situ

Common card · No. 319899

Ductal carcinoma in situ (DCIS), also known as intraductal carcinoma, is a pre-cancerous or non-invasive cancerous lesion of the breast. DCIS is classified as Stage 0. It rarely produces symptoms or a breast lump that can be felt, typically being detected through screening mammography. It has been diagnosed in a significant percentage of men (see male breast cancer). In DCIS, abnormal cells are found in the lining of one or more milk ducts in the breast. It is termed in situ as the abnormal cells have not moved out of the mammary duct and into any of the surrounding tissues in the breast. In some cases, DCIS may become invasive and spread to other tissues, but there is no way of determining which lesions will remain stable without treatment, and which will go on to become invasive. DCIS encompasses a wide spectrum of diseases ranging from low-grade lesions that are not life-threatening to high-grade (i.e., potentially highly aggressive) lesions. DCIS has been classified according to the...

Read on Wikipedia · Image Mikael Häggström, M.D. Author info - Reusing images - Conflicts of interest: None Mikael Häggström, M.D., CC BY 2.5