Study reports racial, ethnic differences in young people with cancer

... sarcoma, a malignancy that occurs in blood vessel walls that often affects people with immune deficiencies, such as HIV/AIDS; fibrosarcoma - tumors in fibrous tissue in the arms, legs, or trunk; liposarcoma - tumors in fatty tissue, often in the ...

http://medicalxpress.com/news/2013-08-racial-ethnic-differences-young-people.html