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Widespread Cutaneous Indeterminate Dendritic Cell Tumor (IDCT) With ETV3::NOAC2 Rearrangement Successfully Treated
Akshay Deshpande1, Zbigniew Rudzki2, Jaideep Bhat3
1Department of Haematology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
Case Reports in Hematology
|December 9, 2024
Summary
Indeterminate dendritic cell tumor (IDCT) presents diagnostic challenges. This report details a rare cutaneous IDCT case with ETV3::NOAC2 rearrangement, successfully treated with PUVA therapy.
Area of Science:
- Dermatopathology
- Oncology
- Genetics
Background:
- Indeterminate dendritic cell tumor (IDCT) is a rare histiocytic neoplasm.
- IDCT poses diagnostic and therapeutic challenges due to a lack of consensus.
- The genetic underpinnings of IDCT are not fully elucidated.
Observation:
- A rare case of cutaneous IDCT is presented.
- The tumor exhibited the ETV3::NOAC2 rearrangement.
- The patient received PUVA therapy for the cutaneous lesions.
Findings:
- The ETV3::NOAC2 rearrangement is associated with cutaneous IDCT.
- PUVA (psoralen plus ultraviolet A) therapy demonstrated efficacy in treating cutaneous IDCT.
- This case adds to the evidence linking specific genetic alterations to IDCT.
Implications:
- Understanding the genetic landscape of IDCT can aid diagnosis.
- PUVA therapy offers a viable, minimally invasive treatment option for cutaneous IDCT.
- Further research into IDCT pathogenesis may reveal novel therapeutic targets.
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