The Spectrum of Spitz Melanocytic Lesions: From Morphologic Diagnosis to Molecular Classification

Tiffany W. Cheng, Madeline C. Ahern, Alessio Giubellino

Research output: Contribution to journalReview articlepeer-review

19 Scopus citations

Abstract

Spitz tumors represent a distinct subtype of melanocytic lesions with characteristic histopathologic features, some of which are overlapping with melanoma. More common in the pediatric and younger population, they can be clinically suspected by recognizing specific patterns on dermatoscopic examination, and several subtypes have been described. We now classify these lesions into benign Spitz nevi, intermediate lesions identified as “atypical Spitz tumors” (or Spitz melanocytoma) and malignant Spitz melanoma. More recently a large body of work has uncovered the molecular underpinning of Spitz tumors, including mutations in the HRAS gene and several gene fusions involving several protein kinases. Here we present an overarching view of our current knowledge and understanding of Spitz tumors, detailing clinical, histopathological and molecular features characteristic of these lesions.

Original languageEnglish (US)
Article number889223
JournalFrontiers in Oncology
Volume12
DOIs
StatePublished - Jun 7 2022

Bibliographical note

Publisher Copyright:
Copyright © 2022 Cheng, Ahern and Giubellino.

Keywords

  • atypical spitz nevus
  • spitz
  • spitz nevus
  • spitzoid lesions
  • spitzoid melanoma

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