NATIONAL CANCER INSTITUTE / SCIENCE PHOTO LIBRARY NATIONAL CANCER INSTITUTE / SCIENCE PHOTO LIBRARY
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Mammography. An female technician positions a woman at an imaging machine to receive a mammogram. Mammography is an X-ray technique which reveals fine details of internal breast tissues. The breast is compressed into a flat plane between a plastic sheet and a metal X-ray plate. It is exposed to low-dose X-rays to obtain an image. Mammography is mainly used in the early detection of breast tumours whether they are benign lumps, cysts or malignant cancer. If a tumour is found on the mammogram, other techniques are used to find out if it is cancerous.
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