In-depth

Causes

Huntington's disease

Huntington's disease — an inherited disease that causes the degeneration of brain cells — results in movement, psychiatric, cognitive disorders and eventual death.

Myasthenia gravis

Myasthenia gravis is a condition of muscle weakness caused by a breakdown in communication between nerves and muscles. Treatments can help relieve muscle weakness.

Strep throat

Strep throat is a bacterial throat infection. It typically causes a very sore throat and is treated with antibiotics.

Complications

Guillain-Barre syndrome

Guillain-Barre syndrome may cause severe weakness, numbness or paralysis — starting in the extremities and often spreading throughout the entire body.

Limited scleroderma (CREST syndrome)

Icy hands, tight skin on your fingers and face, and dilated blood vessels are just some of the problems that can occur with limited scleroderma.

Pneumonia

There are at least 50 kinds of pneumonia — a serious lung infection that takes the lives of more than 60,000 Americans every year.

Premature birth

Having a preemie can be overwhelming. Here's what you need to know about your baby's care and the possible complications of a premature birth.

Risk factors

Panic attacks

Panic attacks can make you feel like you're having a heart attack. Learn how to manage these intense bursts of fear.

Symptoms

Nausea and vomiting

Sick to your stomach? Nausea and vomiting usually pass quickly but sometimes result from long-term or serious conditions.

Unexplained weight loss

Unexplained weight loss: Symptom — Overview covers possible causes of unexplained weight loss.

Tests and diagnosis

Esophageal manometry

Esophageal manometry is a test that may be used to help diagnose disorders of the esophagus or to prepare for esophageal surgery.

Upper endoscopy

Find out what to expect during your endoscopy exam.

X-ray

X-rays are a form of radiation that can make images of your bones and internal organs.

Oct. 21, 2011