Non-Hodgkin's Lymphoma - Introduction

Other Structures in the Lymphatic System. The tonsils and adenoids are secondary organs composed of masses of lymph tissue that also play a role in the lymphatic system. The spleen is another important organ that processes lymphocytes from incoming blood.

Lymph nodes Click the icon to see an animation about lymph nodes.
Click the icon to see an image of lymph nodes in the head and neck.
Click the icon to see an image of the immune system structures.

Locations of Non-Hodgkin's Lymphomas

Non-Hodgkin's lymphomas occur most often in lymph nodes in the chest, neck, abdomen, tonsils, and the skin. NHLs may also develop in sites other than lymph nodes such as the digestive tract, central nervous system, and around the tonsils.

Non-Hodgkin's Lymphomas Categories

There are more than 30 distinct types of non-Hodgkin's lymphomas. Lymphomas are categorized in a several ways:

  • As indolent (slow-growing) or aggressive (fast-growing). Indolent and aggressive lymphomas are equally common in adults. Aggressive lymphomas are more common in children. Aggressive lymphomas tend to be more curable than indolent lymphomas.
  • As arising from B cells or T cells. About 85 - 90% of Non-Hodgkin’s lymphomas are B cell subtypes and 10 - 15% are T cell subtypes. This report focuses on B cell lymphomas.

B-Cell Lymphomas

Common types of B-cell lymphoma include:


Review Date: 01/27/2011
Reviewed By: Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)