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Primary cutaneous B-cell lymphomas: then and now
1Department of Dermatology, Medical University of Graz, Graz, Austria. helmut.kerl@meduni-graz.at
Insights
Primary cutaneous B-cell lymphomas (pCBCL) were historically varied but are now a defined group of extranodal lymphomas. Advances in understanding pCBCL pathogenesis promise improved diagnosis and treatment.
Area of Science:
- Dermatology
- Hematology
- Oncology
Background:
- Historically, cutaneous lymphomas were described through clinical and histopathological methods.
- Primary cutaneous B-cell lymphomas (pCBCL) were previously categorized under various terms like lymphosarcoma and skin reticuloses.
Observation:
- Modern classification recognizes pCBCL as a distinct group of extranodal lymphomas.
- The World Health Organization-European Organization for Research and Treatment of Cancer classification criteria are now used.
Findings:
- pCBCL are now a well-defined entity within hematopathology.
- This reclassification standardizes the diagnosis and study of these conditions.
Implications:
- Further research into pCBCL pathogenesis is anticipated.
- Improved diagnostic and therapeutic strategies for pCBCL are expected outcomes.
Abstract:
In the past, concepts of cutaneous lymphomas were based on careful clinical and classical histopathological descriptions. Most primary cutaneous B-cell lymphomas (pCBCL) were designated as lymphosarcoma, follicular lymphoma, histiocytic lymphoma, reticulum-cell sarcoma or skin reticuloses. Today, pCBCL are classified as a fully recognized and well-defined group of extranodal lymphomas according to the criteria of the World Health Organization-European Organization for Research and Treatment of Cancer classification. Better understanding of the mechanisms of the pathogenesis in pCBCL will hopefully stimulate investigative research and provide further improvement of diagnosis and treatment.
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