Table 5 Categories of 18 F-FDG PET/CT combined with ultrasonography for indications of ALND/PSC
Category | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
AUS | - | - | + | + |
18F-FDG-uptake | - | + | - | + |
No. of involved ALNs | ||||
0 | 117 (85) | 6 (50) | 1 (20) | 0 (0) |
1 | 12 (9) | 5 (42) | 2 (40) | 9 (32) |
2 ≦ Involved ALNs ≦ 5 | 6 (4) | 1 (8) | 1 (20) | 9 (32) |
6 ≦ | 3 (2) | 0 (0) | 1 (20) | 10 (36) |
The maximum size of involved ALNs | ||||
≦ 5 mm | 10(48) | 5 (83) | 0 (0) | 0 (0) |
5 mm < metastasis < 10 mm | 7(33) | 1 (17) | 2 (50) | 6 (21) |
10 mm ≦ | 4(19) | 0 (0) | 2 (50) | 22(79) |
Nuclear grade of involved ALNs | ||||
Grade 1 and 2 | 16(76) | 3 (50) | 4 (100) | 13(46) |
Grade 3 | 5(24) | 3 (50) | 0 (0) | 15(54) |
Frequency of involved ALNs | 15% | 50% | 80% | 100% |
Indications of ALND/PSC | SNB | FNAC/Bx is needed | FNAC/Bx is needed | Acceptable |
Total | 138 (100) | 12 (100) | 5 (100) | 28 (100) |