Figure 4 | Modern Pathology

Figure 4

From: Immunohistochemistry using a Mycobacterium tuberculosis complex specific antibody for improved diagnosis of tuberculous lymphadenitis

Figure 4

PCR amplification of a 92-bp fragment of IS6110. Lane M: 100-bp ladder; lanes 1–3: triplicates from a tuberculous lymphadenitis case; lane 4: tissue positive control; lane 5: DNA from M. tuberculosis H37Rv; lane 6: DNA extracted from a tissue negative control; lane 7: negative PCR control. Most of the cases were positive on nested PCR. In some cases all three samples (lanes 1–3) were positive, whereas in others only one or two of the triplicate samples were positive.

Back to article page