Nodular melanoma mimicking keratoacanthoma: Lessons to learn

Research output: Contribution to journalArticle

Abstract

A 67-year-old man of Chinese descent presented with a painless nodular lesion that had been present on his right forearm for the previous 3 months. A single, well-defined, dome-shaped, firm nodule with a central keratin plug surrounded by erythema was noted. Keratoacanthoma with secondary bacterial infection was suspected and the patient underwent an excision biopsy. Biopsy of the nodule and immunohistochemical staining supported a diagnosis of nodular malignant melanoma. It should be noted both that nodular malignant melanoma may present with a wide variety of clinical appearances, and that the lack of melanin pigment in nodular malignant melanoma may hinder the diagnosis of this aggressive tumour.

Original languageEnglish
Pages (from-to)360-363
Number of pages4
JournalSultan Qaboos University Medical Journal
Volume12
Issue number3
Publication statusPublished - 2012

Fingerprint

Keratoacanthoma
Melanoma
Biopsy
Melanins
Erythema
Keratins
Coinfection
Bacterial Infections
Forearm
Staining and Labeling
Neoplasms

Keywords

  • Case report
  • Keratoacanthoma
  • Malaysia
  • Malignant melanoma
  • Melanoma

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Nodular melanoma mimicking keratoacanthoma : Lessons to learn. / Muthupalani, Leelavathi; Das, Srijit; Md Nor, Norazirah; Ali, Siti A M.

In: Sultan Qaboos University Medical Journal, Vol. 12, No. 3, 2012, p. 360-363.

Research output: Contribution to journalArticle

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