Intramucosal naevus with pseudoepitheliomatous hyperplasia in the gingiva: A case report

T. Suzuki, H. Kumamoto, H. Nagasaka, H. Kawamura, K. Ooya

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


This article describes the unusual case of an intraoral pigmented naevus with pseudoepitheliomatous hyperplasia of the gingiva. A 62-year-old man presented with an almost coal-black pigmented and partly white, spotted, dome-shaped swelling on the lingual gingiva of the mandible. Histologically, the lesion consisted of clusters of round-shaped naevus cells containing melanin granules, reactive with both S-100 immunohistochemical stain and Masson-Fontana silver stain, and pseudoinvasive squamous nests, reactive with cytokeratin. The pathogenesis of the present lesion and problems encountered in its differential diagnosis are discussed.

Original languageEnglish
Pages (from-to)330-333
Number of pages4
JournalInternational Journal of Oral and Maxillofacial Surgery
Issue number3
Publication statusPublished - 2002


  • Case report
  • Gingiva
  • Intramucosal naevus
  • Pseudoepitheliomatous hyperplasia


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