Table 1

Primary tumor and definitive diagnosis of lymph nodes included in the study (n = 42)

Primary tumor
 Esophageal cancer11 (26%)
 Rectal cancer7 (17%)
 Gastric cancer3 (7%)
 Lung cancer21 (50%)
Definitive diagnosis
 Benign lymph node21 (50%)
 Metastatic lymph node21 (50%)
Criteria for definitive diagnosis
 Pathological examination of resected specimen24 (57%)
 Clinical follow-up18 (43%)