Primary cutaneous B-cell lymphomas

Werner Kempf1, Natalja Denisjuk, Katrin Kerl

  • 1Department of Dermatology, University Hospital Zurich, Switzerland. werner.kempf@access.uzh.ch

Insights

Cutaneous B-cell lymphomas (CBCL) are common skin cancers. While some forms have an excellent prognosis, others require aggressive treatment, highlighting the need for accurate diagnosis.

Area of Science:

  • Dermatology
  • Oncology
  • Hematology

Background:

  • Cutaneous B-cell lymphomas (CBCL) represent the second most frequent primary cutaneous lymphomas.
  • The majority of CBCL cases include cutaneous follicle center lymphoma and cutaneous marginal zone lymphoma, typically presenting as nodules.

Purpose of the Study:

  • To differentiate between indolent and aggressive forms of CBCL.
  • To emphasize the diagnostic importance of clinico-pathologic correlation, histology, immunohistochemistry, genotyping, and staging.

Main Methods:

  • Review of clinical presentations and histopathological findings of CBCL.
  • Immunohistochemical profiling and genotyping for lymphoma subtyping.
  • Staging examinations to assess disease extent.

Main Results:

  • Cutaneous follicle center lymphoma and cutaneous marginal zone lymphoma exhibit an indolent course with a good prognosis, despite frequent recurrences.
  • Cutaneous diffuse large B-cell lymphoma, leg type, and other rare CBCL variants have a poor prognosis, necessitating multiagent chemotherapy and anti-CD20 monoclonal antibodies.

Conclusions:

  • Accurate diagnosis and classification of CBCL are critical for determining prognosis and guiding treatment strategies.
  • Distinguishing between indolent and aggressive CBCL subtypes is essential for patient management and therapeutic decisions.

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