Skip to main content

Advertisement

Table 2 Ultrasound findings in relation to evidence of TB

From: Clinical and ultrasonographic features of abdominal tuberculosis in HIV positive adults in Zambia

Finding TB positive TB negative PPV NPV
n = 31 22 9   
Ascites 16 6 73% 33%
Ascites with fibrinous stranding 12 2 86% 41%
Intra-abdominal lymphadenopathy 9 4 69% 27%
Hepatomegaly 8 2 80% 33%
Splenomegaly 1 1 - -
Mesenteric mass 6 1 86% 33%
Pancreatic mass 0 0 - -
  1. Note that if some cases of TB were missed through false negative cultures, then PPV and NPV will be under-estimated. Predictive values were not calculated when numbers were very small.
  2. PPV, positive predictive value. NPV, negative predictive value.