This is a case report of a previously undescribed 20q chromosomal deletion (del(20q)) in marginal zone lymphoma (MZL). A 54-year-old Caucasian male presented with an enlarging neck mass and multiple violaceous skin nodules over his chest. Biopsy of the neck mass and cervical lymph nodes revealed MZL. Cytogenetic evaluation of both lymph node and bone marrow tissue revealed del(20q). This was an unexpected finding, as del(20q) is associated with myelodysplastic syndromes and myeloproliferative neoplasms and rarely seen in diffuse large B-cell lymphoma, follicular lymphoma, and T-cell lymphoma, but has not previously been described in MZL. We describe the case presentation and histologic findings and discuss the significance of this novel finding.
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http://dx.doi.org/10.1155/2013/784176 | DOI Listing |
Cytotechnology
February 2025
Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, H-118, New York, NY 10065 USA.
The aim of this study was to evaluate if the Ki-67 labeling index (LI) on immediate pre-ablation biopsies of colorectal liver metastases (CLM) is associated with the presence of viable tumor cells in subsequent ablation zone biopsies and/or local tumor progression-free survival (LTPFS). Biopsies of CLM were performed before and after microwave ablation (MWA), as part of a prospective clinical trial between October 2013 and May 2019. Pre-ablation biopsy slides were examined for the Ki-67 LI using light microscopy.
View Article and Find Full Text PDFActas Dermosifiliogr
December 2024
Servicio de Dermatología, Hospital Universitario de Fuenlabrada, Camino del Molino 2, 28942, Fuenlabrada, Madrid, España.
Int J Surg Case Rep
December 2024
Department of Internal Medicine, Hawassa University Comprehensive Specialized Hospital, Hawassa, Sidama, Ethiopia.
Introduction And Importance: Orbital lymphomas, are extranodal lymphomas primarily involving the ocular adnexa, which includes conjunctiva, eyelids, eyelashes, eyebrows, lacrimal glands, retro-orbital soft tissues, and the extraocular muscles. Ocular adnexal lymphomas can be primary or secondary. This case is important because there are few case reports in the world, and it is among the first case to be reported from Ethiopia.
View Article and Find Full Text PDFAdv Sci (Weinh)
December 2024
Beijing Institute of Basic Medical Sciences, Beijing, 100850, China.
Dysregulated IL-10 producing regulatory B cells (Bregs) are associated with the progression of systemic lupus erythematosus. An immunomodulatory role of heat shock proteins (HSPs) is implicated in autoimmune diseases. However, the molecular basis underlying the role of Hspa13 in regulating Bregs function and lupus pathogenesis remains unclear.
View Article and Find Full Text PDFEthiop J Health Sci
October 2024
Department of Radiology, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia.
Background: Prostate cancer is a leading cause of cancer-related mortality among men, second only to lung cancer. Prostate magnetic resonance imaging (MRI) utilizing the Prostate Imaging and Reporting Data System (PI-RADS) v2.1 scoring system effectively stratifies patients by risk and correlates significantly with histopathological outcomes.
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