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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.3
- 수록면
- 23 - 29 (7page)
- DOI
- 10.35420/jcohns.2022.33.1.23
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초록· 키워드
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Melanotic oncocytic metaplasia (MOM) of the nasopharynx is an extremely rare benign lesion which is characterized by the presence of usually a small, pigmented lesion near the Eustachian tube opening, but never reported the form of cyst without pigmentation. A 76-year-old man who had a symptom with globus pharyngeus for 3 months was presented to otolaryngology clinic. The lesion was found as a rare form of cystic mass without pigmentation through endoscopic examination. Microscopically, there were well-formed glandular structured oncocytic cells with abundant eosinophilic granular cytoplasm. Scattered brown pigments were also noted, which were positive for S-100 and negative for HMB-45 in immunohistochemistry. He was diagnosed with MOM of the nasopharynx. MOM of the nasopharynx should be always taken into consideration about its various clinical forms as a benign mimicker of malignant melanoma.
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