Anne and Adele,
 
Normally we do not diagnose Lymphosarcoma (LSA) on the basis of a blood test
alone.  An elevated lymphocyte count (>55% or >3,500) is suspicious of the
disease.  Other symptoms that increase the index of suspicion are the
symptoms, including weight loss, poor appetite, lethargy, diarrhea, enlarged
lymph nodes.  The only way to confirm a diagnosis is with a biopsy or
cytology.  These samples are sent to a board certified pathologist like Dr
Williams.  Once the diagnosis is confirmed then treatment is considered.  I
have seen a fair number of cases of ferrets with an elevated lymphocyte count
with and without symptoms, that have a chronic infection and the count goes
back to normal after a 14 day course of antibiotics.
I would not recommend treatment for LSA without a confirmed diagnosis. (This
is one possible explanation for cases of  LSA being cured with diet or herbal
remidies)
 
Dr Weiss
301-299-4142
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[Posted in FML issue 1192]