Anaplastic Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** A diffuse large B-cell lymphoma variant characterized by the presence of large round, oval, or polygonal cells with bizarre pleomorphic nuclei resembling Hodgkin or Reed-Sternberg cells. It is unrelated to anaplastic large cell lymphoma which is a T-cell non-Hodgkin lymphoma.

**Synonyms:** - Anaplastic Large B-Cell Lymphoma - Anaplastic large B-cell lymphoma