Marijuana may increase a man's risk of testicular cancer

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Young men who use marijuana may have a higher risk of testicular cancer, according to a new study.

California researchers compared the recreational drug use of 163 men who had testicular cancer with 292 healthy men of the same age, race and ethnicity.

All were between the ages of 18 and 35.

They found those who smoked pot had double the risk of testicular tumors.

The National Cancer Institute estimates more than 8500 men will be diagnosed with testicular cancer in the U.S. this year.

About 360 of them will die from it.

The study appears in the latest issue of the American Cancer Society's journal, Cancer.

Copyright 2012 CNN. All rights reserved. CBS 5 (Meredith Corporation) contributed to this report.