Would just like to thank the very kind person who gave me the AFB control that my Pathologist is lording over, we had an immuno suppressed patient biopsy and in one of the sections there is a great vacule with an  abundance of AFB. We are now trying to work out if anything went wrong, has anyone come across any unusual situations where a false positive could be created?

The control and tissue where on the same slide, but a good distance apart, the bacteria in the patient are in the same place on two consecutive sections.

 

Also if you know of any sites with good pictures of AFB positive tissue I would be interested in looking at these.

 

Yours faithfully:

 

A. Kevin Williams