| Autor: |
Gagnon, Marie-France, Meyer, Reid G, Weaver, Eric J, Wood, Adam J, Dupuy, Dudley A, Menachery, Sudeep J, Shi, Min, Baughn, Linda B, Ketterling, Rhett P, Peterson, Jess F |
| Předmět: |
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| Zdroj: |
Laboratory Medicine; Sep2024, Vol. 5 Issue 5, p649-654, 6p |
| Abstrakt: |
Several reports of concurrent MYC , BCL2 , BCL6 , and CCND1 rearrangements in high-grade B-cell lymphoma (HGBL) have been recently described. Herein, we aimed to delineate the scope of this entity through a review of HGBL with a "quadruple-hit" genetic profile identified at our institution. We performed a retrospective review (2015-2023) at our institution of B-cell lymphoma (BCL) cases that were evaluated with concurrent MYC , BCL2 , and BCL6 break-apart and IGH::MYC and IGH::CCND1 dual-color dual-fusion fluorescence in situ hybridization studies. Of 203 cases meeting inclusion criteria, 2 (1%) with a quadruple-hit genetic profile were identified. Case 1 represented a 59-year-old female with widespread lymphadenopathy and a diagnosis of HGBL who exhibited primary refractoriness to dose-adjusted etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin, and rituximab (DA-EPOCH-R) chemotherapy. Case 2 represented a 58-year-old male with mediastinal and abdominal lymphadenopathy and a diagnosis of large BCL who died from disease after 1 cycle of DA-EPOCH-R chemotherapy. Similarly, a literature review of 7 previously reported cases of HGBL with a quadruple-hit profile also demonstrated aggressive disease behavior. Our study adds 2 new cases to the rarely encountered quadruple-hit HGBL, and a brief meta-analysis of the 9 available cases indicates aggressive disease behavior conferred by this constellation of genetic events. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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