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Progressive supranuclear palsy is a disorder in a small section of the brain that causes weakness of certain muscles.This is a rare disorder but may be mistaken for Parkinson's disease.

Frontotemporal dementia (FTD), a common cause of dementia, is a group of disorders that occur when nerve cells in the frontal and temporal lobes of the brain are lost. This causes the lobes to shrink. FTD can affect behavior, personality, language, and movement.

This blood test checks for mutations for the BRCA 1 and BRCA 2 genes, which can increase the risk for breast and ovarian cancer.

This test looks for the antigen called CA 19-9 in your blood. It may help diagnose pancreatic cancer and other types of cancer.

This screening test looks for inherited diseases or genes that put you at risk for a certain disease.

Fetal echocardiography (echo) uses sound waves to check the heart of your developing baby. Learn why the test is used, and what to expect before, during, and after this test.

Teeth that have tooth decay must be repaired. Advances in dental materials and methods provide new, effective ways to restore teeth.

Fluoride helps prevent tooth decay, strengthens tooth enamel, and reduces the harmful effects of plaque.

Fleas, mites, and chiggers are different kinds of small insects. They are also parasites. This means they feed off the blood, skin, or both of animals and humans. These insects are more common in the warm weather. They bite skin and cause symptoms, such as bumps, redness, pain, or itching.