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Is high-grade B-cell lymphoma the same as diffuse large B-cell lymphoma?

High-grade B-cell lymphoma and diffuse large B-cell lymphoma (DLBCL) are related but not exactly the same.

DLBCL is a type of aggressive, fast-growing lymphoma and is the most common form of non-Hodgkin lymphoma. It's often described as "high-grade" Show Full Answer

Is high-grade B-cell lymphoma the same as diffuse large B-cell lymphoma?

High-grade B-cell lymphoma and diffuse large B-cell lymphoma (DLBCL) are related but not exactly the same.

DLBCL is a type of aggressive, fast-growing lymphoma and is the most common form of non-Hodgkin lymphoma. It's often described as "high-grade" because it grows quickly.

However, there's also a specific category called "high-grade B-cell lymphoma, not otherwise specified" (HGBCL-NOS). This term describes rare, very fast-growing lymphomas that don't fit neatly into standard categories like DLBCL or Burkitt lymphoma. These cancers look very aggressive under the microscope but don't have the same genetic changes as typical DLBCL.

So while DLBCL is considered a high-grade (aggressive) lymphoma, HGBCL-NOS is a separate, rarer category for lymphomas that are difficult to classify.

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