How does the Ann Arbor staging system classify NHL/B-cell lymphoma?

Updated: Feb 23, 2021
  • Author: Mohammad Muhsin Chisti, MD, FACP; Chief Editor: Emmanuel C Besa, MD  more...
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The Ann Arbor staging system has commonly been used for patients with non-Hodgkin lymphoma (NHL). [14] This system divides NHL into four stages and subclassifies it into A and B categories. The B designation is applied to individuals with any of the following well-defined generalized symptoms:

  • Unexplained loss of greater than 10% of body weight in the 6 months before diagnosis
  • Unexplained fever with temperature higher than 38°C
  • Drenching night sweats

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