Ann Arbor classification

Ann Arbor classification

A system for staging Hodgkin's disease and guiding therapy; clinical data is added based on A–absence or B–presence of associated symptoms–eg, night sweats, fever or weight loss of > 10%; other Sx of Hodgkin's disease include lethargy, fatigability, anorexia, pruritus. See Hodgkin's disease

Ann Arbor classification

1. A single involved lymphoid region, organ or site
2. 2+ involved lymphoid regions, or one extralymphoid site and a lymphoid region on the same side of the diaphragm
3. Lymphoid regions involved on both sides of the diaphragm, ± accompanied by local ized involvement of extralymphatic organs or spleen
4. Disseminated involvement of 1+ extralymphatic organs or tissues, with/without asso ciated lymphadenopathy
.