Table 3. Radiologic presentation of patients in a study of NTM infections at Kampong Cham Provincial Reference Hospital, Cambodia, October 1, 2012–April 21, 2014*.
| Characteristic |
No. (%) patients |
||||
| Total, N = 1,187 |
TB, n = 217 |
NTM disease,
n = 11 |
NTM colonization, n = 113 |
Culture-negative, n = 842 |
|
| Normal |
260 (21.9) |
2 (<0.1) |
1 (9.1) |
44 (38.9) |
212 (25.2) |
| Abnormal | 927 (78.1) | 215 (99.1) | 10 (91.0) | 69 (61.1) | 630 (74.8) |
| Cavity | 189 (20.4) | 113 (52.6) | 4 (40.0) | 7 (10.1) | 64 (10.2) |
| Fibrosis/volume loss | 335 (36.2) | 76 (35.5) | 7 (70.0) | 27 (39.1) | 224 (35.6) |
| Infiltrates | 866 (93.4) | 214 (99.5) | 10 (100) | 63 (91.3) | 577 (91.6) |
| Miliary | 8 (0.9) | 8 (3.7) | 0 | 0 | 0 |
| Adenopathy | 103 (11.1) | 24 (11.2) | 2 (20) | 14 (20.3) | 62 (9.8) |
| Nodule/mass | 127 (13.7) | 36 (16.7) | 2 (20) | 10 (14.5) | 78 (12.4) |
| Pleural tick | 239 (25.8) | 68 (31.6) | 6 (60) | 18 (26.1) | 147 (23.3) |
| Pleural effusion | 68 (7.3) | 16 (7.4) | 0 | 4 (5.8) | 48 (7.6) |
| Bronchiectasis |
148 (16.0) |
29 (13.5) |
6 (60) |
13 (18.8) |
99 (15.7) |
| Extent† | |||||
| Minimal | 584 (63.1) | 83 (38.6) | 4 (40.0) | 44 (64.7) | 451 (71.6) |
| Moderate | 231 (24.9) | 84 (39.1) | 4 (40.0) | 16 (23.5) | 126 (20.0) |
| Advanced | 111 (12.0) | 48 (22.3) | 2 (20.0) | 8 (11.8) | 53 (8.4) |
*NTM, nontuberculous mycobacteria; TB, tuberculosis. †Minimal: lesions that are slight to moderate density or bronchiectasis without cavitation. Lesions may be present in a small portion of 1 or both lungs, but the total extent of the lesions should not exceed the volume of lung on 1 side, which is present above the second chondrosternal junction (or apex of 1 lung). Moderate: lesions may be present in 1 or both lungs, but the total extent must not be more than the following: 1) scattered lesions of slight to moderate density or bronchiectasis that may extend throughout the total volume of 1 lung or the equivalent volume in both lungs; 2) dense, confluent lesions that are limited in extend to one third of the volume of 1 lung; 3) cavitation with a diameter <4 cm. Advanced: lesions that are more extensive than moderately advanced.