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J Oral Maxillofac Pathol. 2019 Jan-Apr;23(1):129-135. doi: 10.4103/jomfp.JOMFP_236_18.

Prevalence of malignant melanoma in anatomical sites of the oral cavity: A meta-analysis.

Author information

1
Department of Oral and Maxillofacial Pathology, King George's Medical University, Lucknow, Uttar Pradesh, India.
2
Department of Conservative Dentistry and Endodontics, King George's Medical University, Lucknow, Uttar Pradesh, India.
3
Department of Community Medicine, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
4
Department of Oral and Maxillofacial Pathology, Srinivas Institute of Dental Sciences, Mangalore, Karnataka, India.

Abstract

Oral malignant melanoma (OMM) is a very rare disease entity accounting <1% of all other melanomas. Till date, no comprehensive meta-analysis has been conducted regarding the prevalence of malignant melanoma in the oral cavity. Therefore, the present meta-analysis was conducted to update on the prevalence of malignant melanoma in anatomical sites of the oral cavity. Literature search was performed to congregate reports of last 10 years using databases, such as PubMed and ScienceDirect. The search strings used were "palate," "buccal," "gingiva," "gum," "maxillary," "mandibular," "lip," "tongue," "melanoma," "oral melanoma," "malignant melanoma," "prognosis," "risk factors," "noncutaneous" and "diagnosis" of OMM by combining terms using the Boolean operators. MedCalc 16.4.3 software was used for the analysis. "Random effects model" was used in the analysis due to significant heterogeneity in the studies. Proportion method was used to analyze the prevalence. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed to report the analysis. Out of 130 studies screened, 19 were included in the meta-analysis and a total of 1323 patients were included. The median age of the patients was found to be 61.87 ± 7.78 years (confidence interval 53.8-67 years). All the screened studies showed significant heterogeneity in gender as well as tumor sites (P < 0.0001). Palate (34.29%) was the most commonly affected site in OMM patients. Overall, the results of the meta-analysis suggest that palate is the most prevalent site in OMM. Furthermore, OMM is high in patients between the fifth and sixth decade of life with a male predominance.

KEYWORDS:

Gingiva; meta-analysis; oral malignant melanoma; oral mucosa; palate; proportion; tumor

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