Fibromuscular dysplasia (FMD) is a rare disease. It causes abnormal cell growth in some arteries in the body.

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.

A possible occult fracture is a suspected fracture that needs to be confirmed with other imaging tests. Read on to learn more.

An osteoid osteoma is a type of bone tumor. It isn't cancer (benign). It stays in the same place that it starts. It won't spread to other bones or parts of your body. Read on to learn more.

Methicillin-resistant Staphylococcus aureus (MRSA) is a type of bacteria. MRSA infections are sometimes very hard to treat. Here's what you need to know.

Cytomegalovirus (CMV) is a type of virus that is related to the virus that causes herpes. Read on to learn more.

Inappropriate sinus tachycardia (IST) is a health problem in which the heart beats very quickly without a good reason. Read on to learn more about causes, symptoms, diagnosis, and treatment.

Ptosis is when the upper eyelid droops down more than it should. If the ptosis is severe, it may block vision.

A pterygium is a type of noncancer growth on your eye. It is often only a minor problem unless it causes vision problems.

Premature ventricular contractions, or PVCs, are a type of abnormal heartbeat. Read on to learn more about their cause, symptoms, diagnosis, and treatment.