Has primary cutaneous marginal zone extranodal B-cell lymphoma been downgraded in recent years?
The search results don't contain specific information about whether primary cutaneous marginal zone B-cell lymphoma has been downgraded or reclassified in recent years.
What we do know is that cutaneous B-cell lymphoma (CBCL) Show Full Answer
Has primary cutaneous marginal zone extranodal B-cell lymphoma been downgraded in recent years?
The search results don't contain specific information about whether primary cutaneous marginal zone B-cell lymphoma has been downgraded or reclassified in recent years.
What we do know is that cutaneous B-cell lymphoma (CBCL) can be staged as Stage 1E when it's only on the skin, where the "E" indicates it's extranodal (developed outside the lymph nodes). For some people with indolent types of CBCL who have no symptoms or disease progression, doctors may recommend watchful waiting.
Marginal zone lymphomas are generally considered low-grade (indolent or slow-growing) lymphomas. They make up about 7-8% of all non-Hodgkin lymphoma cases and include three subtypes: MALT lymphoma (the most common), nodal marginal zone lymphoma, and splenic marginal zone lymphoma.
If you're looking for information about recent changes to how your specific lymphoma type is classified or graded, this would be a great question to discuss with your oncologist or hematologist, as they would have access to the most current staging and classification systems.
November 20, 2025
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