Intermediate grade of NHL are all except :
**Core Concept**
The question is testing knowledge of the World Health Organization (WHO) classification of Non-Hodgkin Lymphoma (NHL), specifically the intermediate grade of NHL. The WHO classification is a widely accepted system for categorizing lymphomas based on their morphological, immunophenotypic, and genetic features.
**Why the Correct Answer is Right**
Intermediate-grade NHLs are typically aggressive lymphomas with a high proliferation rate and a moderate to high risk of transformation to a more aggressive phenotype. They are characterized by a mix of small and large lymphoid cells, often with a high nuclear-to-cytoplasmic ratio and irregular nuclear contours. Examples of intermediate-grade NHLs include diffuse large B-cell lymphoma (DLBCL) and follicular lymphoma grade 3A.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is not a specific type of NHL. The WHO classification includes several subtypes of NHL, but this option does not specify a particular type.
**Option B:** This option is incorrect because it is not a characteristic of intermediate-grade NHL. Low-grade NHLs are typically indolent and have a low proliferation rate, whereas intermediate-grade NHLs are more aggressive.
**Option C:** This option is incorrect because it is not a correct example of intermediate-grade NHL. Mantle cell lymphoma is typically classified as a low-grade NHL, whereas follicular lymphoma grade 3A is an example of an intermediate-grade NHL.
**Clinical Pearl / High-Yield Fact**
The WHO classification of NHL is widely accepted and is used to guide treatment decisions. Familiarity with the classification is essential for accurate diagnosis and management of lymphoma patients.
**Correct Answer:** D