In-depth

Tests and diagnosis

Genetic testing

Genetic testing is used to detect altered genes that may cause illness or disease. Although genetic testing can offer important health information, it has limitations.

Skin biopsy

Find out what you can expect during a skin biopsy.

Treatments and drugs

Stem cell transplant

Stem cell transplants can bring certain cancers and other diseases under control, or even cure them. Find out what's involved in this complex procedure.

Sep. 27, 2011