Table 1 Number of patients with PET-positive lymph nodes in different regions; in all patients and in subgroups according to primary tumor location
Regions of PET-positive lymph nodes | ||||||
|---|---|---|---|---|---|---|
Inguinala | Perirectala | Internal iliaca | External iliac | Common iliac | Para-aortic | |
All patients (n = 103) | 75b of 103 (73%) | 35 (34%) | 28 (27%) | 33 (32%) | 11 (11%) | 9 (9%) |
Tumor localization | ||||||
Anal canal | 6 of 10 (60%) | 3 (30%) | 1 (10%) | 3 (30%) | 3 (30%) | 1 (10%) |
Anal canal + rectum | 11 of 32 (34%) | 17 (53%) | 15 (47%) | 13 (41%) | 4 (13%) | 3 (9%) |
Anal canal + perianal | 32 of 33 (97%) | 2 (6%) | 1 (3%) | 8 (24%) | 0 (0%) | 1 (3%) |
Anal canal + rectum + perianal | 26 of 28 (93%) | 13 (46%) | 11 (39%) | 9 (32%) | 4 (14%) | 4 (14%) |