4. CARCINOMA OF THE BREAST
Breast carcinoma is the second most common carcinoma in females
in India , the first being carcinoma of the cervix.
* In the United States , one out of four women will get cancer breast in that country.
* In world-wide figures, the highest incidence of breast cancer is among the Dutch and lowest among Japanese women.
* There is a five fold difference in breast cancer in the diferent regions of the world.
4.1 ETIOLOGY
The disease is almost always met with in females, and is extremely rare in males.
* Breast cancer is not met with before puberty and is very rare before the age of twenty.
* In many instances, family history of breast cancer is available. It is known that in those who have this history,the female off-springs have two to three times higher risk
of developing cancer of the breast.
* It has also been noticed that in the subsequent generations cancer occurs earlier.
* It has been known for sometime that cancer in mice is transmitted through a factor found in milk (Bittner's milk virus) of the mothers.
* Diet rich in saturated fats is suspected cause. It is common in Developing countries and in the obese.
* It is common in nulliparous. Less common if first child before 20 years.
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