Sir,
Our patient who had concurrent chronic lymphocytic leukemia and hairy cell leukemia, viral serological markers including HIV and hepatitis viruses B and C were tested by the highly sensitive chemiluminescent immunoassay method. With this screening immunoassay, although false positivity can occur, the probability of false negativity is extremely low. This patient tested negative for all the three viruses. He was a previously fit and well gentleman and in light of the above negative tests, we did not think it prudent to further pursue CD4 counts and viral load estimation by polymerase chain reaction. These details could not be incorporated in the original case report due to word limit restrictions. However, the point raised of HIV predisposing to multiple lympho-proliferative malignancies is well taken.
