Dataset Information

A Great Mimicker in Thoracic Spine: Spinal Double Expressor Lymphoma.

ABSTRACT: Diffuse large B-cell lymphoma (DLBCL) is one of the most common causes of non-Hodgkin's lymphoma (NHL). Some of these DLBCLs can have genetic mutations as well as protein overexpression. The genes involved are MYC, BCL-2 and BCL-6. These are very aggressive and do not respond well to standard chemotherapy regiment. Lymphomas usually show classic signs and symptoms but rarely can present with little or no symptoms or even mimic other disease processes. Here we will present a case where a spinal lymphoma mimicked a hematoma and the patient developed signs and symptoms only after mechanical fall and hitting his back.

SUBMITTER: Mufti M

PROVIDER: S-EPMC7155832 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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A Great Mimicker in Thoracic Spine: Spinal Double Expressor Lymphoma.

Mufti Muhammad M Nawab Khalid K Mohammad Rabia R

Journal of hematology 20180901 3

Diffuse large B-cell lymphoma (DLBCL) is one of the most common causes of non-Hodgkin's lymphoma (NHL). Some of these DLBCLs can have genetic mutations as well as protein overexpression. The genes involved are MYC, BCL-2 and BCL-6. These are very aggressive and do not respond well to standard chemotherapy regiment. Lymphomas usually show classic signs and symptoms but rarely can present with little or no symptoms or even mimic other disease processes. Here we will present a case where a spinal l ...[more]

PMID: 32300424

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Project description:BACKGROUND:The poor outcome of high-grade B-cell lymphoma, with rearrangements of MYC, BCL2 and/or BCL6, also known as double-hit lymphoma or triple-hit lymphoma (DHL or THL), has been well documented, while the clinical significance of extra copies of MYC, BCL2 or BCL6 are still less well known. METHODS:In total, 130 cases of diffuse large B-cell lymphoma, not otherwise specified (DLBCL-NOS) were included in our study. Fluorescence in situ hybridization and immunohistochemistry were performed in all cases to evaluate the genetic status and protein expression levels of MYC, BCL2 and BCL6. RESULTS:Among the 130 cases of DLBCL, the prevalence rates of extra copies of MYC, BCL2 and BCL6 were 10.8, 20.0 and 14.6%, respectively, and the corresponding rates of gene rearrangement were 10.0, 14.6 and 16.9%, respectively. In total, 7.7% (10/130) of patients were DHL/THL; 9.2% (12/130) of patients were DLBCL with MYC and BCL2 and/or BCL6 gene abnormalities including rearrangements or extra copies, while excluded DHL/THL. The positive protein expression rates of MYC, BCL2 and BCL6 were 46.9% (61), 75.4% (98) and 70.0% (91), respectively. Among the 51 cases with MYC/BCL2 co-expression, 14 cases showed concurrence of MYC, BCL2 and/or BCL6 genetic abnormalities, and the remaining 37 cases were classified as double-expressor lymphoma (DEL). MYC and BCL2 rearrangement and BCL2 extra copies were all associated with upregulated protein expression. Cases with concurrence of MYC, BCL2 and/or BCL6 genetic abnormalities were both associated with MYC/BCL2 co-expression. Patients with concurrence of MYC, BCL2 and/or BCL6 genetic abnormalities excluded DHL/THL had shorter OS (P?<?0.001) than patients with DLBCL with no genetic change, and showed no statistical different with patients with DHL/THL (P?=?0.419). Extra copies of MYC was independent prognostic factors for DLBCL. CONCLUSIONS:Patients with MYC and BCL2 and/or BCL6 gene extra copies might show a trend towards poor prognosis, and the detection of extra copies of MYC, BCL2 and BCL6 might deserve more attention.

Dataset Information

A Great Mimicker in Thoracic Spine: Spinal Double Expressor Lymphoma.

Publications

A Great Mimicker in Thoracic Spine: Spinal Double Expressor Lymphoma.

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