SEER Inquiry System - Question 20031148 Details

For cases diagnosed 1998-2003:

Use the following criteria to determine whether or not certain clinical findings qualify as "B" symptoms.

1. Fevers. Unexplained fever with temperature above 38 degrees C.

2. Night sweats. Drenching sweats that require change of bedclothes.

3. Weight loss. Unexplained weight loss of more than 10% of the usual body weight in the 6 months prior to diagnosis.

Pruritus alone does not qualify for B classification, nor does alcohol intolerance, fatigue, or a short, febrile illness associated with suspected infections.

The clinical description in the example above does not meet the criteria for B symptoms. Generally, the symptoms in the B category have to occur over an extended period of 7 to 30 days. In this case the fever is explained by "typical cold symptoms" and in addition, three days of fever is not a long enough period.