Canterbury DHB



See Barrington, S. F., et al. (2014). "Role of Imaging in the Staging and Response Assessment of Lymphoma: Consensus of the International Conference on Malignant Lymphomas Imaging Working Group." Journal of Clinical Oncology 32(27): 3048-3058.

The following is based on the original Ann Arbor staging system modified at a meeting in the Cotswolds, UK. The accuracy of staging will depend on the methods used. At the present time, CT scanning with contrast of abdomen, pelvis, chest, and neck is a key part of the staging process.

In This Section

The Ann Arbor Staging System

The Ann Arbor Staging System

Staging of NHL is the same as for Hodgkin lymphoma.

Stage I

Involvement of a single lymph node region (I) or a single extra lymphatic organ or site (IE).

Stage II

Involvement of 2 or more lymph node regions on the same side of the diaphragm (II) or localised involvement of an extra-lymphatic organ or site and if 1 or more lymph node regions on the same side of the diaphragm (IIE).

Stage III

Involvement of lymph node regions on both sides of the diaphragm (III), if spleen or extra-lymphatic organ/site involved (IIIS / IIIE) or, if both involved (IIISE). (III includes involvement of upper or lower abdominal lymphatic structure of their own).

Stage IV

Diffuse or disseminated involvement of 1 or more extra-lymphatic organs or tissues including marrow, with or without associated lymph node involvement.


The suffix “B” is added in presence of fever, night sweats, or significant weight loss (i.e., >10% over 6 months).

The suffix “A” denotes absence of those symptoms.

About this Canterbury DHB document (5946):

Document Owner:

Peter Ganly (see Who's Who)

Last Reviewed:

December 2021

Next Review:

December 2024


Note: Only the electronic version is controlled. Once printed, this is no longer a controlled document. Disclaimer

Topic Code: 5946