Positivity rates.

Table 3 describes the positivity rates, i.e. the number of positive samples divided by the total number of samples tested, of microscopy and IS2404 gel-based polymerase chain reaction per type of lesion and type of sample; diagnostic samples from 202 patients with suspected BUD from three study sites in Togo (CHR Tsévié, CHP Sotouboua, USP Agbetiko) were collected within three years (September 2007 through August 2010);aFNA, fine needle aspiration;bMIC, microscopic examination for the detection of acid fast bacilli;cPCR, IS2404, gel-based polymerase chain reaction;dND, not done;eNA, not available;