WEBPATHOLOGY / SCIENCE PHOTO LIBRARY WEBPATHOLOGY / SCIENCE PHOTO LIBRARY
Invasive lobular breast cancer. Light micrograph of a tissue sample from an invasive lobular breast cancer. This type of breast cancer arises in milk-producing glands (lobules) of the breast. The tumor consists of mostly single cells dispersed in an irregular fashion in a densely fibrotic stroma. A few uninvolved ducts with microcalcifications are at right. Breast cancer is the most common cancer in women. Symptoms include painless lumps in the breast, a dark discharge from the nipple, and an indentation of the nipple. Early diagnosis can be made by mammography or self-examination. Once a cancer has spread, the prognosis is poor.
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