D. OUELLETTE, PUBLIPHOTO DIFFUSION / SCIENCE PHOTO LIBRARY D. OUELLETTE, PUBLIPHOTO DIFFUSION / SCIENCE PHOTO LIBRARY
Mammography. A woman's breast is X-rayed by a mammography machine to check for breast cancer. Mammography is used to investigate lumps in the breast and to screen women for breast cancer. The breast is gently compressed between a clear plastic sheet and an X-ray plate. Tumours show up as dense, hard masses, and further tests, such as tissue sampling, may be carried out to find out if they are malignant (cancerous). Mamm- graphy can detect breast cancer at the earliest stages, improving the chance of successful treat- ment before the cancer has spread.
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