A colonization of basal cell carcinoma by malignant melanoma in situ resembling a malignant basomelanocytic tumor

Megan Goeser, Dominick J. DiMaio

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

We report a case of colonization of basal cell carcinoma (BCC) by malignant melanoma in situ (MIS) simulating a malignant basomelanocytic tumor. A biopsy of a pigmented lesion present on an 83-year-old man's scalp displayed intimate admixing of basaloid and melanocytic cells. This seemingly inseparable combination of BCC and neoplastic melanocytes has been referred to as a malignant basomelanocytic tumor. However, our case also displays an adjacent component of MIS, thus favoring colonization of BCC by MIS as the etiology. To our knowledge, this is the third case report of colonization of BCC by MIS resembling a malignant basomelanocytic tumor.

Original languageEnglish (US)
Pages (from-to)e179-e182
JournalAmerican Journal of Dermatopathology
Volume36
Issue number11
DOIs
StatePublished - 2014

Keywords

  • Basal cell carcinoma
  • Basomelanocytic
  • Collision tumor
  • Melanoma

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Dermatology

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