Oral White Lesions Associated with Chewing Khat

Introduction Khat is a cultivated plant whose leaves when chewed elevate mood. Unlike the chewing of betel nut, no association between the white oral mucosal lesions in khat users and oral malignancies has been reported. Chewing of khat has been documented in many countries and has increased with wo...

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Main Authors: Meir Gorsky, Joel B. Epstein, Harel Levi, Noam Yarom
Format: Article
Language:English
Published: European Publishing 2004-09-01
Series:Tobacco Induced Diseases
Subjects:
Online Access:http://www.journalssystem.com/tid/Oral-White-Lesions-Associated-with-Chewing-Khat,65879,0,2.html
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author Meir Gorsky
Joel B. Epstein
Harel Levi
Noam Yarom
author_facet Meir Gorsky
Joel B. Epstein
Harel Levi
Noam Yarom
author_sort Meir Gorsky
collection DOAJ
description Introduction Khat is a cultivated plant whose leaves when chewed elevate mood. Unlike the chewing of betel nut, no association between the white oral mucosal lesions in khat users and oral malignancies has been reported. Chewing of khat has been documented in many countries and has increased with worldwide migration. The impact of chewing khat upon the oral mucosa is essentially unknown. Purpose The purpose of this study was to assess the occurrence of oral white changes in chronic khat chewers. Oral mucosal changes in a group of 47 Yemenite Israeli men over 30 years of age, who had chewed khat more than 3 years, were compared to those of 55 Yemenite men who did not chew. Results White lesions were significantly more prevalent in the khat chewers (83%) compared to the non chewing individuals (16%) (P < 0.001). White oral lesions were identified primarily on the lower buccal attached gingival mucosa, the alveolar mucosa and the lower mucobuccal fold on the chewing side (p < 0.001). There was no significant association between the occurrence of the white lesions and smoking. Even though the majority of the white lesions (85.4%) were homogenous, 71.4% of the non homogenous lesions were identified in khat chewers. Vital staining with toluidine blue and exfoliative cytology was conducted on a subset of patients with homogenous and non-homogenous oral lesions, and there were no findings suspicious for pre-malignant or malignant changes. Discussion This study demonstrated a relationship between khat chewing and oral white lesions, which we attribute to chronic local mechanical and chemical irritation of the mucosa. Our findings also suggest that mucosal changes associated with khat are benign, however, this initial study requires further studies including follow-up of khat users to confirm the current findings, including the likely benign changes associated with chronic use and histologic findings of clinical lesions.
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spelling doaj.art-0e56b814be714e43a8b2069528f8d8442022-12-21T23:33:58ZengEuropean PublishingTobacco Induced Diseases1617-96252004-09-012September10.1186/1617-9625-2-3-14565879Oral White Lesions Associated with Chewing KhatMeir Gorsky0Joel B. Epstein1Harel Levi2Noam Yarom3Department of Oral Pathology and Oral Medicine, The Maurice and Gabriella Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, IsraelMedical-Dental Staff, British Columbia Cancer Agency, Vancouver, CanadaThe Maurice and Gabriella Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, IsraelDepartment of Oral Pathology and Oral Medicine, The Maurice and Gabriella Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, IsraelIntroduction Khat is a cultivated plant whose leaves when chewed elevate mood. Unlike the chewing of betel nut, no association between the white oral mucosal lesions in khat users and oral malignancies has been reported. Chewing of khat has been documented in many countries and has increased with worldwide migration. The impact of chewing khat upon the oral mucosa is essentially unknown. Purpose The purpose of this study was to assess the occurrence of oral white changes in chronic khat chewers. Oral mucosal changes in a group of 47 Yemenite Israeli men over 30 years of age, who had chewed khat more than 3 years, were compared to those of 55 Yemenite men who did not chew. Results White lesions were significantly more prevalent in the khat chewers (83%) compared to the non chewing individuals (16%) (P < 0.001). White oral lesions were identified primarily on the lower buccal attached gingival mucosa, the alveolar mucosa and the lower mucobuccal fold on the chewing side (p < 0.001). There was no significant association between the occurrence of the white lesions and smoking. Even though the majority of the white lesions (85.4%) were homogenous, 71.4% of the non homogenous lesions were identified in khat chewers. Vital staining with toluidine blue and exfoliative cytology was conducted on a subset of patients with homogenous and non-homogenous oral lesions, and there were no findings suspicious for pre-malignant or malignant changes. Discussion This study demonstrated a relationship between khat chewing and oral white lesions, which we attribute to chronic local mechanical and chemical irritation of the mucosa. Our findings also suggest that mucosal changes associated with khat are benign, however, this initial study requires further studies including follow-up of khat users to confirm the current findings, including the likely benign changes associated with chronic use and histologic findings of clinical lesions.http://www.journalssystem.com/tid/Oral-White-Lesions-Associated-with-Chewing-Khat,65879,0,2.htmlmucosal changecathinoneoralleukoplakiabetel quidexfoliative cytology
spellingShingle Meir Gorsky
Joel B. Epstein
Harel Levi
Noam Yarom
Oral White Lesions Associated with Chewing Khat
Tobacco Induced Diseases
mucosal change
cathinone
oralleukoplakia
betel quid
exfoliative cytology
title Oral White Lesions Associated with Chewing Khat
title_full Oral White Lesions Associated with Chewing Khat
title_fullStr Oral White Lesions Associated with Chewing Khat
title_full_unstemmed Oral White Lesions Associated with Chewing Khat
title_short Oral White Lesions Associated with Chewing Khat
title_sort oral white lesions associated with chewing khat
topic mucosal change
cathinone
oralleukoplakia
betel quid
exfoliative cytology
url http://www.journalssystem.com/tid/Oral-White-Lesions-Associated-with-Chewing-Khat,65879,0,2.html
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