Everything about Nasal Polyp totally explained
Nasal polyps are
polypoidal masses arising mainly from the
mucous membranes of the
nose and
paranasal sinuses. They are overgrowths of the mucosa that frequently accompany
allergic rhinitis. They are freely moveable and non-tender. Nasal polyps are usually classified into
antrochoanal polyps and
ethmoidal polyps. Antrochoanal polyps arise from the
maxillary sinuses and are much less common, ethmoidal polyps arise from the
ethmoidal sinuses. Antrochoanal polyps are usually single and unilateral whereas ethmoidal polyps are multiple and
bilateral. Symptoms of polyps include nasal block,
sinusitis,
anosmia or loss of smell, and secondary
infection leading to
headache.
The pathogenesis of nasal polyps is unknown. Nasal polyps are most commonly thought to be caused by allergy and rarely by
cystic fibrosis although a significant number are associated with non-allergic adult
asthma or no respiratory or allergic trigger that can be demonstrated.
These polyps have no relationship with colonic or uterine polyps. Irregular unilateral polyps particularly associated with pain or bleeding will require urgent investigation as they may represent an intranasal tumour.
Nasal polyps are most often treated with steroids, topical or oral, but can also be treated with surgical methods.
Pre-post surgery,
sinus rinses with a warm water (240 ml / 8 oz) mixed with a small amount (teaspoon) of
salts (
sodium chloride &
sodium bicarbonate) can be very helpful to clear the
sinuses. This method can be also used as a preventative measure to discourage the polyps from growing back and should be used in combination with a nasal steroid.
Mometasone furoate, commonly available as a nasal spray for treating common allergy symptoms, has been indicated in the
United States by the
FDA for the treatment of nasal polyps since December 2004.
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