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Craniofacial is a medical term that relates to the bones of the skull and face. Craniofacial abnormalities are birth defects of the face or head. Some, like cleft lip and palate, are among the most common of all birth defects. Others are very rare. Most of them affect how a person's face or head looks. These conditions may also affect other parts of the body.

Treatment depends on the type of problem. Plastic and reconstructive surgery may help the person's appearance.

Esophagus disorders are problems with how your esophagus works. The esophagus is the tube that carries food from your mouth to your stomach. You usually don't notice it unless you swallow something too big, hot, or cold. You might also notice it if something is wrong. When that happens, you might feel pain or have trouble swallowing (dysphagia).

The cause depends on the type of disorder. Some run in families. Others are linked to allergic reactions to food or substances in your environment. Sometimes, the cause is unknown.

You may be more likely to develop an esophagus disorder if you:

• Are overweight or have obesity
• Are pregnant
• Take certain medicines
• Have had radiation treatmentt to your neck or chest
• Smoke or are around secondhand smoke

The most common esophagus problem is gastroesophageal reflux disease (GERD). This happens when the muscle at the bottom of your esophagus doesn't close properly. Stomach acid can move back up and irritate the esophagus.

Other esophagus disorders include:

• Heartburn is a burning feeling in your chest or throat. It is often caused by acid reflux.
• Barrett's Esophagus happens when the lining of your esophagus changes. It is often caused by chronic (long-term) GERD.
• Achalasia is a problem where the lower muscle in your esophagus doesn't relax like it should.
• Esophageal Spasms are muscle contractions that cause chest pain or swallowing problems.
• Eosinophilic Esophagitis (EoE) is a rare condition where certain white blood cells (eosinophils) build up in the esophagus, causing swelling, pain, and trouble swallowing.
• Esophageal Cancer is a type of cancer that starts in the tissues of the esophagus.

Symptoms can be different for each condition but may include:

• Pain in your chest, abdomen (belly), or back
• A cough or sore throat that doesn't go away
• Trouble swallowing or feeling like food is stuck
• A hoarse voice or wheezing
• Heartburn or a burning feeling in your stomach
• Tasting acid or food in the back of your mouth
• Food or liquid coming back up into your mouth (regurgitation)
• Losing weight without trying

Get medical help right away if you have chest pain with shortness of breath, or pain in your jaw or arm. These could be signs of a heart problem.

Your health care provider will ask about your symptoms and medical history. They may order one or more tests, such as:

• Upper gastrointestinal (GI) endoscopy. This test uses a tiny camera to look inside your esophagus and stomach.
• Biopsy. This test takes a small tissue sample to check.
• Barium swallow. This test uses imaging to see how you swallow.
• Esophageal manometry. This test checks how well your esophagus moves food to your stomach.
• Esophageal pH test. This test measures how often acid backs up into your esophagus and how long the acid stays there.

Treatment depends on what's causing the problem and your overall health. Some esophagus disorders get better with over-the-counter medicines, diet changes, or lifestyle changes. Others may need prescription medicine or surgery.

Without treatment, some disorders may lead to other problems, such as pneumonia, from food entering the windpipe. GERD, Barrett's esophagus, and achalasia can also raise your risk for esophageal cancer.

You can help prevent or reduce symptoms by:

• Not smoking and limiting alcohol
• Eating smaller meals
• Avoiding eating close to bedtime
• Wearing loose-fitting clothes
• Sleeping on your left side or raising the head of your bed
• Maintaining a healthy weight

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

Your digestive or gastrointestinal (GI) tract includes the esophagus, stomach, small intestine, large intestine or colon, rectum, and anus. Bleeding can come from any of these areas. The amount of bleeding can be so small that only a lab test can find it.

Signs of bleeding in the digestive tract depend on where it is and how much bleeding there is.

Signs of bleeding in the upper digestive tract include:

• Bright red blood in vomit
• Vomit that looks like coffee grounds
• Black or tarry stool
• Dark blood mixed with stool

Signs of bleeding in the lower digestive tract include:

• Black or tarry stool
• Dark blood mixed with stool
• Stool mixed or coated with bright red blood

GI bleeding is not a disease, but a symptom of a disease. There are many possible causes of GI bleeding, including hemorrhoids, peptic ulcers, tears or inflammation in the esophagus, diverticulosis and diverticulitis, ulcerative colitis and Crohn's disease, colonic polyps, or cancer in the colon, stomach or esophagus.

The test used most often to look for the cause of GI bleeding is called endoscopy. It uses a flexible instrument inserted through the mouth or rectum to view the inside of the GI tract. A type of endoscopy called colonoscopy looks at the large intestine.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases