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Nasal Polyps

Nasal Polyps

It's hard to breathe, your nose drips constantly and your sense of smell just isn't what it used to be. If this sounds like you, you probably blame allergies or a chronic sinus infection. But in some cases, your symptoms may be due to nasal polyps — soft, noncancerous (benign) growths that develop on the lining of your nose or sinuses.

Small nasal polyps usually cause few problems, but larger ones can affect your breathing and diminish your sense of smell. Sometimes they may cause dull headaches or snoring, and in rare cases, massive polyps can alter the shape of your face.

Nasal polyps result from chronic inflammation in the lining of your nose or sinuses, but just what triggers the inflammation isn't always clear. Although nasal polyps can affect anyone, they're more common in people older than 40 and in adults and children with conditions such as asthma, chronic sinus infections, hay fever and cystic fibrosis.

Medications are the most common treatment for small nasal polyps. Surgery may be needed to remove larger growths, but polyps frequently return.

Signs & Symptoms

You may have a single nasal polyp or several, clustered together like grapes on a stem. The polyps are generally soft and pearl colored, with a consistency like jelly. Very small single or multiple polyps may not cause any problems, but larger ones are likely to obstruct the airways in your nose, making it difficult to breathe. This may lead to mouth breathing, especially in children.

Other signs and symptoms of nasal polyps include:

• A Runny Nose

• Persistent Stuffiness

• Chronic Sinus Infections

• Loss or Diminishment of your Sense of Smell

• Dull Headaches

• Snoring

Causes

Although you may think of your nose mainly in terms of its appearance, it filters, warms and moistens the air you breathe, and it transmits scent-related information to your brain.

Your nose is mainly composed of bone, cartilage and mucous membrane. Each nasal cavity contains three or four bony shelves (turbinates) that curve from the outer part of your nose toward the septum — a thin, cartilage-and-bone divider that separates your nasal cavity. A thick mucous membrane covers both the turbinates and septum. This acts as a filter to remove bacteria and dirt particles, which are swept out of your nose by tiny hairs called cilia.

When incoming air is cold or dry, the highly sensitive tissue that lines the turbinates swells, narrowing your nasal passages and slowing the flow of air so that it becomes warm and moist before reaching your lungs.

Your nose also contains olfactory nerves that pick up scents and send the information to your brain, where the scents are identified. Without the nose-brain connection, you couldn't smell mom's apple pie or the ripeness of a fresh peach. In fact, without the olfactory nerves, you wouldn't be able to taste those foods either because most of your ability to taste depends on your sense of smell.

How Nasal Polyps Form

Nasal polyps can develop in the mucous lining of your nose or in one or more of your sinuses — four hollow cavities above and behind your nose. But polyps aren't a disease. Rather, they're the end product of ongoing inflammation that may result from viral or bacterial infections, from allergies or from an immune system response to fungus. Chronic inflammation causes the blood vessels in the lining of your nose and sinuses to become more permeable, allowing water to accumulate in the cells. Over time, as gravity pulls on these waterlogged tissues, they may develop into polyps.

When to Seek Medical Advice?

A stuffy, runny nose and diminished sense of smell are the hallmarks of nasal polyps. But they also may be signs of many other conditions, including the common cold. Colds, however, generally clear in about a week, whereas nasal polyps don't go away on their own. See your doctor if your breathing problems and runny nose persist.

Screening & Diagnosis

To help diagnose nasal polyps, your doctor will ask about your medical history and examine your nasal passages. Sometimes you may also have a computerized tomography (CT) scan to help determine the size and exact location of the polyps, including any polyps in your sinuses.

Other Tests

If you have a young child diagnosed with multiple nasal polyps, your doctor may suggest testing for cystic fibrosis, an inherited condition affecting the glands that produce mucus, tears, sweat, saliva and digestive juices. The standard diagnostic test for cystic fibrosis is a noninvasive sweat test, which measures the amount of sodium and chloride in your child's perspiration.

Children who have both nasal polyps and hay fever may have allergy skin tests, which can provide important information about allergic sensitivities. Allergy skin tests aren't uncomfortable for most children and can usually be completed in 30 minutes or less.

Treatment

When medications aren't effective, your doctor may recommend removing your polyps surgically. This is often the only option for people with cystic fibrosis who usually don't respond to steroids. The type of operation depends on the size, number and location of the polyps.

Polypectomy. Small or isolated polyps can often be completely removed using a small mechanical suction device or a microdebrider — an instrument that cuts and extracts soft tissue. The procedure, called a polypectomy, is performed on an outpatient basis. Following polypectomy, you'll be treated for any underlying inflammation, usually with corticosteroid nasal sprays and sometimes with antibiotics or oral steroids. Even so, polyps frequently return, and you may need additional operations.

Endoscopic sinus surgery. This is a more extensive procedure that not only removes polyps, but also opens the part of the sinus cavity where polyps usually form. If your sinuses are very blocked or inflamed, your doctor may open even more of your sinus cavity. In both cases, your surgeon uses a thin, rigid tube and a camera called a video endoscope. Because endoscopic surgery requires small incisions, you generally heal more quickly and with less discomfort than with other types of surgery. Still, full recovery may take several weeks, and polyps often return. This surgery has serious potential risks, including leakage of cerebrospinal fluid, injury to the optic nerve or eye muscles, and hemorrhage.

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