Table 2 Final diagnoses of the patients with pelvic lesions who underwent EUS-FNA
|  | Overall n = 49 | Upper GI n = 28 | Lower GI n = 21 |
|---|---|---|---|
Malignant diseases, n (%) | 42 (85.7) | 24 (85.7) | 18 (85.7) |
 Malignant lymphoma | 25 (51.0) | 19 (67.9) | 6 (28.6) |
 LN metastasis of malignant tumor | 9 (18.4) | 4 (14.3) | 5 (23.8) |
 Carcinoma of unknown primary | 2 (4.1) | 1 (3.6) | 1 (4.8) |
 Gastrointestinal stromal tumor | 4 (8.2) | – | 4 (19.0) |
 Peritoneal mesothelioma | 1 (2.0) | – | 1 (4.8) |
 Rectal invasion of bladder cancer | 1 (2.0) | – | 1 (4.8) |
Benign diseases, n (%) | 7 (14.3) | 4 (14.3) | 3 (14.3) |
 Retroperitoneal fibrosis | 3 (61.2) | 3 (10.7) | – |
 Lipoma | 1 (2.0) | 1 (3.6) | – |
 Schwannoma | 1 (2.0) | – | 1 (4.8) |
 Castleman disease | 1 (2.0) | – | 1 (4.8) |
 Non-specific lymphadenopathy | 1 (2.0) | – | 1 (4.8) |