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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2002-10-2
pubmed:abstractText
We have compared the histological aspects of nasal mucosa biopsies (n = 130) obtained during bilateral polypectomy and ethmoidectomy performed in black African (n = 50), Chinese (n = 30) and Caucasian patients (n = 50) suffering from bilateral nasal polyposis (NP). The three groups of patients were matched for age and sex. The African and Chinese patients did not receive any medical treatment before endoscopic nasal surgery (ENS). All Caucasian patients were treated with corticosteroid nasal spray (400 mg/day) for 6 months. In the absence of subjective and objective clinical improvement, ENS was performed after antibiotic treatment for 10 days and prednisolone 1 mg/kg/day for 5 days. Clinical staging of the NP was graded from I to III (I = polyps limited to the middle meatus, II = polyps extending beyond the middle meatus, and III = polyps occupying the entire nasal cavity). Stage I NP was present in 22% of the Caucasians and 30% of the Chinese. Stage II was found in 58% of the Caucasians, 56% of the Chinese and 8% of the Africans. Stage III was found in 92% of the Africans, while only 20% of the Caucasians and 14% of the Chinese patients had stage III. The extent of submucosal oedema and number of mast cells were similar for the three groups of patients. A significantly greater number of eosinophils were observed in African polyps. Lymphocytes as well as plasmocytes were rare in African but abundant in polyps from both Chinese and Caucasian. Ulceration of the overlying epithelium of the polyps was observed in 20% of the African and 10% of both Chinese and Caucasians patients. We did not find any significant thickening of the basal membrane. We cannot exclude the possibility that the histological difference observed between African and Chinese polyps is related to the very common use among the Chinese population of topical intranasal treatment according to their traditional medicine practices. Since no major histological difference was found in the nasal mucosa and polyps obtained from the three groups of patients, NP in African, Chinese and Caucasian patients is very probably a similar inflammatory disease in all three ethnic groups.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0300-0729
pubmed:author
pubmed:issnType
Print
pubmed:volume
40
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
118-21
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:12357710-Adolescent, pubmed-meshheading:12357710-Adult, pubmed-meshheading:12357710-African Continental Ancestry Group, pubmed-meshheading:12357710-Analysis of Variance, pubmed-meshheading:12357710-Asian Continental Ancestry Group, pubmed-meshheading:12357710-Biopsy, Needle, pubmed-meshheading:12357710-Child, pubmed-meshheading:12357710-Chronic Disease, pubmed-meshheading:12357710-Cohort Studies, pubmed-meshheading:12357710-Endoscopy, pubmed-meshheading:12357710-European Continental Ancestry Group, pubmed-meshheading:12357710-Female, pubmed-meshheading:12357710-Humans, pubmed-meshheading:12357710-Immunohistochemistry, pubmed-meshheading:12357710-Male, pubmed-meshheading:12357710-Middle Aged, pubmed-meshheading:12357710-Nasal Mucosa, pubmed-meshheading:12357710-Nasal Polyps, pubmed-meshheading:12357710-Nose Neoplasms, pubmed-meshheading:12357710-Probability, pubmed-meshheading:12357710-Prospective Studies, pubmed-meshheading:12357710-Sensitivity and Specificity
pubmed:year
2002
pubmed:articleTitle
Histological comparison of nasal polyposis in black African, Chinese and Caucasian patients.
pubmed:affiliation
Rhinology and Olfactology Unit, ENT Department, University Hospital, Geneva, Switzerland. silvain.lacroix@hcuge.ch
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't