ArticleGenes, chromosomes & cancer2024
A cutaneous epithelioid vascular tumor harboring a TPM3::ALK fusion.
Article in Genes, chromosomes & cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Protein kinase-related tumors in the pediatric population : Updated review on an emerging group with emphasis on the more rarely involved kinases.Pathologie (Heidelberg, Germany) · 2026Review
- Tropomyosin 3 Gene Fusions in Cancers: From Mechanisms to Treatments-A Comprehensive Review.Cancer medicine · 2025Review
- Primary cutaneous rhabdomyosarcoma with EWSR1/FUS::TFCP2 fusion: four new cases with distinctive morphology, immunophenotypic, and genetic profile.Virchows Archiv : an international journal of pathology · 2025Article
- Cutaneous Hemangioma With Epithelioid Features Harboring TPM3/4::ALK Fusions : A Distinct Entity or a Molecular Variant of Epithelioid Hemangioma?The American journal of surgical pathology · 2025Article
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Authors and funding
3 authors.
Funding
Abstract
Substantial progress has been made in understanding the molecular pathways associated with vascular tumors over the last two decades. In addition to mutations and copy number aberrations, fusions have emerged as significant contributors to the pathogenesis of a notable subset of vascular tumors. In this report, we present a case of an unusual intradermal vascular tumor with epithelioid cytomorphology. Immunohistochemistry revealed diffuse positivity for CD31, ERG and Factor VIII, supporting its endothelial lineage. RNA sequencing (ArcherFusion Plex) revealed the presence of an in-frame fusion between the genes TPM3 Exon 8 and ALK Exon 20. Immunohistochemistry confirmed ALK expression by the endothelial cells. To our knowledge, this is the first documented case of a vascular tumor harboring an ALK fusion. It may fall within the spectrum of epithelioid hemangiomas; nevertheless, we cannot definitively exclude the possibility of it being a distinct and potentially unique benign entity on its own.
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