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Video: Barium enema
See what to expect during an X-ray examination of your colon.
Video: Skin cancer — How skin cancer develops
Watch this video to see what melanoma and nonmelanoma skin cancers look like and how they develop.
Mayo Clinic Minute: Patch testing for contact dermatitis
Patch testing is used to identify the cause of an allergic skin reaction.
Mayo Clinic Minute: Patch testing for contact dermatitis
Patch testing is used to identify the cause of an allergic skin reaction.
Mayo Clinic Minute: Patch testing for contact dermatitis
Patch testing is used to identify the cause of an allergic skin reaction.
Video: Endoscopy
An endoscopy allows your doctor to view your esophagus, stomach and part of the small intestine. Here's how it works.
Video: Sentinel node biopsy for melanoma
Video shows sentinel node biopsy to determine whether melanoma has spread.
Mayo Clinic Minute: Steam treatment for enlarged prostate
Find out how steam treatment for enlarged prostate works.
Mayo Clinic Minute: Why concussion screening is important
Concussion screening can help determine when athletes can return to play.
Video: Mammogram for breast cancer — What to expect
Watch video to see what it's like to have a mammogram, or breast cancer detection exam.
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