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Comprehensive Next-Generation Sequencing Testing in a Patient with TEMPI Syndrome
Flavia Guimaraes Nunes Rosado1, Danijela Lekovic2, Jeffrey Gagan3
1Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Laboratory Medicine
|March 2, 2023
Summary
TEMPI syndrome, a rare plasma cell neoplasm, presents with unique symptoms like telangiectasia and erythrocytosis. Comprehensive genetic testing reveals no JAK2 mutation, differentiating it from polycythemia vera.
Area of Science:
- Hematology
- Oncology
- Genetics
Background:
- TEMPI syndrome is a rare plasma cell neoplasm with paraneoplastic manifestations.
- Key features include telangiectasia, erythrocytosis, monoclonal gammopathy, perinephric collections, and intrapulmonary shunting.
- Often misdiagnosed as polycythemia vera due to erythrocytosis, but lacks JAK2 mutations.
Purpose of the Study:
- To present a novel case of TEMPI syndrome.
- To analyze comprehensive next-generation sequencing (NGS) results.
- To review current literature and update the understanding of TEMPI syndrome genetics.
Main Methods:
- Case presentation of a patient with TEMPI syndrome.
- Next-generation sequencing (NGS) panel analysis of 1,425 cancer-related genes.
- Literature review focusing on genetic updates for TEMPI syndrome.
Main Results:
- This study presents the first comprehensive NGS analysis for TEMPI syndrome.
- NGS results are discussed in the context of a new case and existing literature.
- The genetic underpinnings of TEMPI syndrome remain largely unknown, necessitating further research.
Conclusions:
- TEMPI syndrome is a distinct entity from polycythemia vera, lacking JAK2 mutations.
- Comprehensive NGS testing provides a deeper insight into the genetic landscape of TEMPI syndrome.
- Further research is required to elucidate the pathogenesis and genetic basis of TEMPI syndrome.
