Continue reading the main story. The Wallace Line swerves among the islands of Indonesia from just west of Bali to the seas south of the Philippines. Itâs named after the British naturalist Alfred Russel Wallace, who discovered in the mid-19th century that different species of flora and fauna grew on either side.he Wallace Line swerves among the islands of Indonesia from just west of Bali to the seas south of the Philippines.
The USPSTF recommends that women who are 50 to 74 years old and are at average risk for breast cancer get a mammogram every two years. Women who are 40 to 49 years old should talk to their doctor or other health care professional about when to start and how often to get a mammogram. Women should weigh the benefits and risks of screening tests when deciding whether to begin getting mammograms at age 40.
Mammograms can sometimes detect things that look like cancer but are not, and just a âfalse positiveâ result. About one in 10 to one in 12 women will have a questioned abnormality on their screening mammogram. So, if you have mammograms yearly for 10 to 12 years, you are likely to get this call at least once. The more mammograms you have over your lifetime, the more likely you are to be called back for a follow-up â and it could be because of a âfalse positiveâ result. If something is noticed on the mammogram, you may need to have additional testing, such as a diagnostic mammogram, a breast ultrasound and/or a biopsy.