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Melanotic Oncocytic Metaplasia of the Nasopharynx: An Unusual Case Report.

Iran J Otorhinolaryngol

July 2021

Department of Biomedicine , Neurosciences and Advanced Diagnostic, University of Palermo, Palermo, Italy.

Introduction: Melanotic oncocytic metaplasia of the nasopharynx is an uncommon disease, usually asymptomatic, that could be misdiagnosed for melanoma, because of its macroscopic features. For this reason, is necessary to know it thoroughly and to take it into account in the differential diagnosis.

Case Report: A 69-year-old Italian woman presented to our Otorhinolaryngology Clinic with a 1-month history of sore throat.

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Clinicopathological features of melanotic and non-melanotic oncocytic lesions of the nasopharynx.

Pathology

October 2019

Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.

Oncocytic metaplastic lesions of the nasopharynx are rare benign entities which are divided into melanotic and non-melanotic forms. Less than 40 non-melanotic and 30 melanotic cases have been reported in the literature. We present the largest known case series to date of melanotic oncocytic metaplasia and more than 20 cases of non-melanotic oncocytic metaplasia.

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Melanotic oncocytic metaplasia (MOM) of the nasopharynx is an extremely rare lesion, with only 21 cases reported in English literature to date. MOM typically occurs near the Eustachian tube opening in Asian men in their 60 s to 70 s. Here, we present a case of MOM in a 57-year-old Japanese man who is a heavy smoker.

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Melanotic oncocytic metaplasia of the nasopharynx.

Pathol Int

March 2015

Department of Pathology, Saitama Medical University, Saitama International Medical Center, Saitama, Japan; Department of Clinical Pathology, Kobe City Medical Center General Hospital, Hyogo, Japan.

We present three cases of melanotic oncocytic metaplasia of the nasopharynx. Case 1 and Case 2 were a 70- and a 61-year-old woman, and Case 3 was a 74-year-old man. Although Case 1 was asymptomatic, Cases 2 and 3 had hoarseness.

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