Aims: To determine the utility of clinical, morphological and phenotypical features in the differential diagnosis of plasmablastic lymphoma and myeloma with plasmablastic features.
Methods: All plasmablastic neoplasms identified from a 15-year retrospective search were reviewed and classified into 'lymphoma', 'myeloma' or 'indeterminate'. The classification was then compared with the previously established clinical diagnosis. Lessons learned from this review were used to design a diagnostic algorithm for pathologists to use in the absence of known clinical history.
Results: The classification was possible in 10 of 11 cases, 8 lymphomas and 2 myelomas (n=2). No distinctive morphological or phenotypical features were identified. The most useful histopathological parameter was a positive Epstein-Barr virus in situ hybridisation. Presence of associated lymphadenopathy and/or oral mass in the absence of complete myeloma-defining signs was used to favour a diagnosis of lymphoma in 4 of 8 cases.
Conclusions: The distinction between plasmablastic lymphoma from plasmablastic myeloma warrants detailed knowledge of clinical, radiological and laboratorial findings. New studies identifying distinctive phenotypical or genetic features are needed to improve the histopathological differentiation of plasmablastic neoplasms.
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http://dx.doi.org/10.1136/jclinpath-2016-204294 | DOI Listing |
The article presents a clinical case of secondary cardiomyopathy in an HIV patient with plasmablastic lymphoma due to the combined pathology (HIV infection with ongoing antiretroviral therapy in combination with antitumor therapy), in which the use of multimodal imaging contributed to establishing the correct diagnosis and excluding the unjustified use of invasive methods for diagnosing ischemic heart disease.
View Article and Find Full Text PDFIndian J Pathol Microbiol
January 2025
Department of Oncopathology, Mahamana Pandit Madan Mohan Malaviya Cancer Centre and Homi Bhabha Cancer Hospital, Varanasi, Uttar Pradesh, India.
ALK-positive large B-cell lymphoma (ALK+ LBCL) is a rare neoplasm with an aggressive course and poor therapeutic response to the standard R-CHOP regimen. Owing to its negativity for usual B- and T-cell markers and immunopositivity for epithelial markers, it can be easily misdiagnosed if it is not contemplated. To study the clinicopathological parameters of cases of ALK+ LBCL diagnosed at our institution.
View Article and Find Full Text PDFCureus
November 2024
Radiology, The James Cook University Hospital, Middlesbrough, GBR.
Plasmablastic lymphoma (PbL) is a subtype of diffuse large B-cell lymphoma, primarily linked to human immunodeficiency virus (HIV) infection. This case report presents a 34-year-old HIV-positive patient who exhibited unusual signs of pleural thickening and effusion. Initial evaluations, including imaging and pleural fluid analysis, suggested thoracic empyema.
View Article and Find Full Text PDFJ Hematol
December 2024
Department of Hematology, Chuno Kosei Hospital, Gifu, Japan.
Plasmablastic lymphoma (PBL) is a malignant lymphoma with poor prognosis that occurs in immunocompromised and elderly patients. We describe the case of a 75-year-old woman with PBL as a methotrexate-associated lymphoproliferative disorder (MTX-LPD). She presented with multiple oral ulcers and mass-like shadows in the lung fields.
View Article and Find Full Text PDFCureus
November 2024
Internal Medicine, St Mary Medical Center, Langhorne, USA.
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