What are the leading rare types of cancer? Why are some tumors considered as rare? According to experts, all cancers with diagnosed cases lower than 35,000 annually are considered as rare. Are steps on prevention different from the common types?
The Different Rare Cancers include the following:
Cervical Cancer
Cervical tumors used to be one of the common types among women. Sadly, it still is in poor and developing countries.
In developed countries such as the United States, it is already one of the rare types of cancer compared to endometrial and ovarian types. Reasons are the pap smears and the vaccines used as prevention against different types of human viruses specifically HPV.
Vaccines are now available to every young woman who is sexually active.
Synovial Sarcoma
It affects the soft tissues such as muscles, fat, blood vessels, and fibrous and synovial tissues. It is a type that has no defined cause but genetics is believed to play a role in its development.
How rare is it? Of the 10,000 new soft tissue cases diagnosed each year, only 5 to 10% is synovial sarcoma. This occurs more often among men and about one-half of the cases start in the knees.
Primary Bone Cancer
Examples very rare primary bone cancers are Osteosarcoma, Ewing's Sarcoma, Chondrosarcoma, Angiosarcoma,Chordoma and Spindle Cell Sarcoma. Osteosarcoma is the most common type among these.
Invasive Lobular Carcinoma
This is a type of breast tumor which is rare compared to Invasive Ductal Carcinoma. Invasive Lobular Carcinoma is considered as a special type and is deadlier. It is also the type that afflicts the breast tissues of men. See The Deadly Type: Invasive Lobular Carcinoma.
Esophageal Cancer
The number of cases of tumors that grow in the esophagus is still rare but it is slowly rising during the past years. The increase is because of a rise in the number of people who are obese.