1958. Most malignant form of NHL is -

<p>Diffuse large B cell lymphoma comprises 31% of NHL.About half the cases have extranodal involvement at the time of presentation,paicularly in the bone marrow & alimentary tract.It is a high grade NHL & is very aggressive & disseminate widely.It has rapid proliferation rates,rapidly produces symptoms & is fatal if untreated.</p><p>Reference :Harsh mohan textbook of pathology sixth edition pg no 377</p>