| Abdominal Aortic Aneurysm Detailed information on abdominal aortic aneurysms, including description of abdominal aortic aneurysm, causes, symptoms, diagnosis, treatment, and full-color anatomical and procedure illustrations |
| About Arthritis and Other Rheumatic Diseases Arthritis, itself a group of more than 100 different diseases, is one category of rheumatic diseases. |
| About Breast Cancer in Men Breast cancer in men is rare—less than 1 percent of all breast carcinomas occur in men. |
| About Clinical Trials: Information from the National Cancer Institute Clinical trials are studies, managed by government agencies, educational institutions, private not-for-profit organizations, or commercial businesses, to develop, produce, and evaluate the effectiveness of new treatments and therapies for diseases. |
| About Tamoxifen Tamoxifen has been used to treat both advanced and early stage breast cancer. More recently, tamoxifen is being used as an additional therapy following primary treatment for early stage breast cancer. |
| About Taxol Taxol, or paclitaxel, is a drug used for treating certain women who have advanced breast or ovarian cancer. Paclitaxel is a compound that is extracted from the bark of the Pacific yew tree. |
| Accomplishments of Environmental Medicine One highlight: Exposure to fine particles, sulfur dioxide, and acid aerosols has been linked to an increase in respiratory symptoms and reduced lung capacity. |
| Achalasia Achalasia is a disease that makes it hard to eat and drink normally. It affects your esophagus, which is the swallowing tube that connects the back of your throat to your stomach. |
| Achilles Tendon Injuries Your Achilles tendon withstands a lot of stress and pressure during everyday activities, as well as during athletic and recreational play. |
| Acne Detailed information on acne, including causes, symptoms, and different types of treatment such as medication, dermabrasion, chemical peels, collagen injections, laser resurfacing, punch grafts, phototherapy/blue light therapy, and autologous fat transfer |