Atypical spitz tumor arising on a congenital linear plaque-Type blue nevus: Acase report with a review of the literature on plaque-Type blue nevus

Franco Rongioletti, Antonio Guadagno, Caterina Campisi, Francesco Cabiddu, Heinz Kutzner, Aurora Parodi, Roberto Fiocca

Research output: Contribution to journalArticlepeer-review

Abstract

The plaque-Type blue nevus (PTBN) is a rare variant of blue nevus, of which only a few reports are described. A nodular growth within a preexistent PTBN should always alert to the possibility of malignant transformation. The authors report the first case of an atypical Spitz tumor arising on a congenital linear PTBN in a 60-year-old woman. The diagnosis of "atypical Spitz tumor" is here used to describe a microscopic "gray zone" in which it is not possible to differentiate with adequate certainty between a Spitz nevus and a spitzoid melanoma. This report adds to and summarizes the small body of literature describing PTBN and discusses diagnosticand clinical implications.

Original languageEnglish
Pages (from-to)915-919
Number of pages5
JournalAmerican Journal of Dermatopathology
Volume37
Issue number12
DOIs
Publication statusPublished - 2015

Keywords

  • atypical Spitz tumor
  • combined nevus
  • plaque-Type blue nevus
  • spitzoid melanoma
  • subcutaneous nodules

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Dermatology

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