Table 5 Frequency of Negative Acid-Fast Bacilli Smear and Extrapulmonary Involvement.*
Incidence | ||
|---|---|---|
Variable | MTB | MAC |
Sputum AFB smear negative | 15/35 (43%) | 38/45 (84%) |
BAL AFB smear negative | 4/8 (50%) | 6/6 (100%) |
Extrapulmonary involvement | ||
Blood | 4 | 27 |
Gastrointestinal tract | 5 | 26 |
Bone marrow | 1 | 4 |
Lymph node | 4 | 1 |
Cerebrospinal fluid | 3 | 1 |
Soft tissue | 2 | - |